This is a report of changes between nzism-data/NZISM-FullDoc-V.3.2-Jan-2019.xml and nzism-data/NZISM-FullDoc-V.3.5-January-2022.xml.

Controls Added

CID Title Classifications Compliances Text
7045 2.3.25.C.01. All Classifications Must Agencies intending to adopt public cloud technologies or services MUST develop a plan for how they intend to use these services.  This plan can be standalone or part of an overarching ICT strategy.
7046 2.3.25.C.02. All Classifications Should An agency’s cloud adoption plan SHOULD cover: Outcomes and benefits that the adoption of cloud technologies will bring; Risks introduced or mitigated through the use of cloud, and the agency’s risk tolerance; Financial and cost accounting models; Shared responsibility models; Cloud deployment models; Cloud security strategy; Resilience and recovery approaches; Data recovery on contract termination; Cloud exit strategy and other contractual arrangements; and A high level description of the foundation services that enable cloud adoption, including: User, device and system identity; Encryption and key management; Information management; Logging and alerting; Incident management; Managing privileged activities; and Cost management.
7049 2.3.26.C.01. All Classifications Should Agencies intending to adopt public cloud technologies or services SHOULD incorporate Zero Trust philosophies and concepts.
7050 2.3.26.C.02. All Classifications Should Agencies SHOULD leverage public cloud environment native security services as part of legacy system migrations, in preference to recreating application architectures that rely on legacy perimeter controls for security.
7084 3.2.10.C.04. All Classifications Should The CISO SHOULD work with system owners, system certifiers and system accreditors to determine appropriate information security policies for their systems and ensure consistency with the Protective Security Requirements (PSR) and in particular the relevant NZISM components.
7130 5.9.23.C.01. All Classifications Must An agency MUST undertake a risk assessment to determine which systems and services to include in the agency’s VDP.
7133 5.9.24.C.01. All Classifications Must An agency MUST develop and publish a VDP.
7134 5.9.24.C.02. All Classifications Must An agency’s VDP MUST contain at least the following core content: A scoping statement listing the systems the policy applies to; Contact details; Secure communication options (including any public keys); Information the finder should include in the report; Acknowledgement of reports and a response time; Guidance on what forms of vulnerability testing are out of scope for reporters/finders (permitted activities); Reporters/finders agreeing to not share information about the vulnerability until the end of the disclosure period, in order to allow let the agency to address any issues before they become public; Illegal activities are not permitted (specifying the relevant legislation, such as the Crimes Act); and Either that “Bug bounties” will not be paid for any discoveries, or it should provide information about the agency’s bug bounty programme.
7136 5.9.25.C.01. All Classifications Should An agency SHOULD publish a security.txt to permit secure communications and direct any reports to a specific agency resource, in accordance with the agency’s VDP.
7138 5.9.26.C.01. All Classifications Must An agency MUST commit to addressing disclosed vulnerabilities within the timeframe it sets in its policy.
7139 5.9.26.C.02. All Classifications Should An agency’s vulnerability disclosure timeframe SHOULD be set to no more than 90 days.
7141 5.9.27.C.01. All Classifications Must Agencies MUST ensure they integrate their VDP with other elements of their information security policies.
6592 7.2.24.C.01. All Classifications Must Agencies MUST replace compromised cryptographic keys as a matter of urgency and record the replacement in the incident reporting.
6997 12.6.10.C.01. All Classifications Must Because of the risks that data can be recovered from monitors, it is essential that any redeployment or disposal of monitors MUST follow the guidance in the NZISM.
7165 13.5.24.C.03. All Classifications Must Where a facility is NOT an approved facility, agencies MUST ensure any incineration equipment is rated for the destruction of electronic waste (WEEE) and the operator is properly authorised or licensed.
7166 13.5.24.C.04. All Classifications Must Where a facility is NOT an approved facility, agencies MUST ensure processes are in place for the safe handling of electronic waste (WEEE), including any residual material from the destruction process.
6553 16.1.38.C.01. All Classifications Should Password and other authentication data SHOULD be hashed before storage using an approved cryptographic protocol and algorithm.
6835 16.4.30.C.01. All Classifications Must Agencies MUST establish a Privileged Access Management (PAM) policy.
6836 16.4.30.C.02. All Classifications Must Within the context of agency operations, the agency’s PAM policy MUST define: a privileged account; and privileged access.
6837 16.4.30.C.03. All Classifications Must Agencies MUST manage Privileged Accounts in accordance with the Agency’s PAM Policy.
6842 16.4.31.C.01. All Classifications Must Agencies MUST apply the Principle of Least Privilege when developing and implementing a Privileged Access Management (PAM) policy.
6843 16.4.31.C.02. All Classifications Should Agencies SHOULD use two-factor or Multi-Factor Authentication to allow access to Privileged Accounts.
6846 16.4.32.C.01. All Classifications Must As part of a Privileged Access Management (PAM) policy, agencies MUST establish and implement a strong approval and authorisation process before any privileged access credentials are issued.
6847 16.4.32.C.02. All Classifications Must Not Privileged Access credentials MUST NOT be issued until approval has been formally granted.
6852 16.4.33.C.01. All Classifications Must Agencies MUST establish robust credential suspension and revocation procedures as part of the agency’s Privileged Access Management (PAM) policy.
6855 16.4.34.C.01. All Classifications Must Agencies MUST create and maintain a comprehensive inventory of privileged accounts and the associated access rights and credentials.
6859 16.4.35.C.01. All Classifications Must Agencies MUST create, implement and maintain a robust system of continuous discovery, monitoring and review of privileged accounts and the access rights and credentials associated with those accounts.
6860 16.4.35.C.02. All Classifications Must Privileged account monitoring systems MUST monitor and record: individual user activity, including exceptions such as out of hours access; activity from unauthorised sources; any unusual use patterns; and any creation of unauthorised privileges access credentials.
6861 16.4.35.C.03. All Classifications Must Agencies MUST protect and limit access to activity and audit logs and records.
6864 16.4.36.C.01. All Classifications Must Agencies MUST develop and implement a response and remediation policy and procedure as part of an agency’s Privileged Access Management (PAM) policy.
6868 16.4.37.C.01. All Classifications Must Agencies MUST implement a Privileged Access Management (PAM) policy training module as part of the agency’s overall user training and awareness requirement.
6948 16.7.33.C.01. All Classifications Must Agencies MUST undertake a risk analysis before designing and implementing MFA.
6952 16.7.34.C.01. All Classifications Should The design of an agency’s MFA SHOULD include consideration of: Risk Identification; Level of security and access control appropriate for each aspect of an agency’s information systems (data, devices, equipment, storage, cloud, etc.) A formal authorisation process for user system access and entitlements; Logging, monitoring and reporting of activity; Review of logs for orphaned accounts and inappropriate user access; Identification of error and anomalies which may indicate inappropriate or malicious activity; Incident response; Remediation of errors; Suspension and/or revocation of access rights where policy violations occur; Capacity planning.
6953 16.7.34.C.02. All Classifications Should Where an agency has implemented MFA they SHOULD: Require MFA for administrative or other high privileged users; and Implement a secure, multi-factor process to allow users to reset their normal usage user credentials.
6956 16.7.35.C.01. All Classifications Should The design of an agency’s MFA system SHOULD be integrated with the agency’s Information Security Policy and the agency’s Privileged Access Management (PAM) Policy.
6960 16.7.36.C.01. All Classifications Must When agencies implement MFA they MUST ensure users have an understanding of the risks, and include appropriate usage and safeguards for MFA in the agency’s user training and awareness programmes.
7189 17.2.21.C.01. All Classifications Must Agencies using DSA, for the approved use of digital signatures, MUST use a modulus of at least 1024 bits.
7181 17.2.24.C.03. All Classifications Should Agencies using RSA, for the approved use of digital signatures and passing encryption session keys or similar keys, SHOULD use a modulus of at least 4096 bits.
7186 17.2.25.C.01. All Classifications Must Agencies using RSA keys within internet X.509 Public Key Infrastructure certificates MUST use a modulus of at least 2048 bits.
7187 17.2.26.C.03. All Classifications Must In all other cases when information requires integrity protection using hashing algorithms, Agencies MUST use a minimum of SHA-256.
6560 17.2.27.C.01. All Classifications Must Memorised secrets such as passwords MUST be stored in a form that is resistant to offline attacks.
6561 17.2.27.C.02. All Classifications Should Memorised secrets such as passwords SHOULD be salted and hashed using a suitable one-way key derivation function. See 17.2.24.
6562 17.2.27.C.03. All Classifications Should The salt SHOULD be at least 32 bits in length, be chosen arbitrarily, and each instance is unique so as to minimise salt value collisions among stored hashes.

Controls Removed

CID Title Classifications Compliances Text
383 3.3.6.C.05. All Classifications Should ITSMs SHOULD work with system owners, systems certifiers and systems accreditors to determine appropriate information security policies for their systems and ensure consistency with the Protective Security Requirements (PSR) and in particular the relevant NZISM components.
1263 7.3.5.C.01. All Classifications Must Agencies MUST follow the NZ implementation of the STIXX / TAXII and CyBox protocols and SHOULD include the following information in their register: the date the information security incident was discovered; the date the information security incident occurred; a description of the information security incident, including the personnel, systems and locations involved; the action taken; to whom the information security incident was reported; and the file reference.
1350 8.2.5.C.02. All Classifications Should Agencies SHOULD use a secured server or communications room within a secured facility.
2141 17.2.17.C.01. All Classifications Must Agencies using DSA, for the approved use of digital signatures, MUST use a modulus of at least 1024 bits.
2161 17.2.23.C.01. All Classifications Must 3DES MUST use either two distinct keys in the order key 1, key 2, key 1 or three distinct keys.
2170 17.2.24.C.01. All Classifications Should AES implementations for symmetric encryption of data SHOULD use the Galois/Counter Mode (GCM).

Controls Changed

CID Title Classifications Compliances Text
127 1.1.64.C.01. All Classifications Must System owners seeking a dispensation for non-compliance with any essentialbaseline controls in this manual MUST be granted a dispensation by their Accreditation Authority. Where High GradAssurance Cryptographic Systems (HACS) are implemented, the Accreditation Authority will be the Director-General GCS) are implemented, the Accreditation Authority will be the Director-General GCSB or a formal delegate.
131 1.1.65.C.01. All Classifications Must System owners seeking a dispensation for non-compliance with essentialbaseline controls MUST complete an agency risk assessment which documents: the reason(s) for not being able to comply with this manual; the effect on any of their own, multi-agency or All-of-Government system; the alternative mitigation measure(s) to be implemented; The strength and applicability of the alternative mitigations; an assessment of the residual security risk(s); and a date by which to review the decision.
143 1.1.67.C.01. All Classifications Must If a system processes, stores or communicates data and information with multiple agencies or forms part of an All-of-Government system, interested parties MUST be formally consulted before non-compliance with any essentialbaseline controls.
151 1.1.69.C.01. All Classifications Must Agencies MUST retain a copy and maintain a record of the supporting risk assessment and decisions to be non-compliant with any esbaselintiale controls from this manual.
255 2.3.27.C.01. All Classifications Must Agencies intending to adopt cloud technologies or services MUST conduct a comprehensive risk assessment, in accordance with the guidance provided by the Government CIhief Digital Officer (GCDO) before implementation or adoption.
283 3.1.8.C.02. All Classifications Should When the agency head devolvegates their authority, the delegate SHOULD be a senior executive who understands the CISOconsequences and potential impact to the business of the acceptance of residual risk.
284 3.1.8.C.03. All Classifications Should Where the head of a smaller agency is not able to satisfy all segregation of duty requirements because of scalability and small personnel numbers, all, potential conflicts of interest SHOULD be clearly identified, declared and actively managed.
311 3.2.8.C.05. All Classifications Should Where multhiple roles ofare held by the CISO is outsourced,any potential conflicts of interest in availability, response times or working with vendors SHOULD be identified and carefully managed.
322 3.2.11.C.01. All Classifications Should The CISO SHOULD be responsible for establishing mechanisms and programs to ensuringe compliance with the information security policies and standards within the agency.
323 3.2.11.C.02. All Classifications Should The CISO SHOULD be responsible for ensuring agency compliance with the NZISM through facilitating a continuous program of certification and accreditation bof asedll on security risk managency systements.
334 3.2.13.C.02. All Classifications Should The CISO SHOULD liaise with agency technology architecture teams to ensure alignment between security and agency architectures.
570 4.3.18.C.02. All Classifications Must The Information Security Policy (SecPol) MUST be reviewed by the auditor to ensure that all reapplicablevant controls specified in this manual are addressed.
634 4.4.12.C.03. All Classifications Must Agencies MUST notify the Government CIhief Digital Officer (GCDO) where All-of-Government systems are connected to agency systems operating with expired accreditations.
675 4.5.18.C.03. All Classifications Must The Accreditation Authority MUST advise the GCIDO where the accreditation decision may affect any All-of-Government systems.
780 5.2.3.C.01. All Classifications Should The Information Security Policy (SecPol) SHOULD document the information security, guidelines, standards and responsibilities of an agency.
781 5.2.3.C.02. All Classifications Should The Information Security Policy (SecPol) SHOULD include topics such as: accreditation processes; personnel responsibilities; configuration control; access control; networking and connections with other systems; physical security and media control; emergency procedures and information security incident management; vulnerability disclosure; change management; and information security awareness and training.
1048 6.1.9.C.01. All Classifications Should Agencies SHOULD review the components detailed in the table below. Agencies SHOULD also ensure that any adjustments and changes as a result of any vulnerability analysis are consistent with the vulnerability disclosure policy. Component Review Information security documentation The SecPol, Systems Architecture, SRMPs, SecPlans, SitePlan, SOPs, the VDP, the IRP, and any third party assurance reports. Dispensations Prior to the identified expiry date. Operating environment When an identified threat emerges or changes, an agency gains or loses a function or the operation of functions are moved to a new physical environment. Procedures After an information security incident or test exercise. System security Items that could affect the security of the system on a regular basis. Threats Changes in threat environment and risk profile. NZISM Changes to baseline or other controls, any new controls and guidance.
1066 6.2.5.C.01. All Classifications Should Agencies SHOULD conduct vulnerability assessments in order to establish a baseline. This SHOULD be done: before a system is first used; after any significant incident; after a significant change to the system; after changes to standards, policies and guidelines; and/or as  when specified by an ITSM or the system owner.
1120 6.4.5.C.01. All Classifications Must Agencies MUST determine availability and recovery requirements for their systems and implement appropriate measures consistent with the agency's SRMP to support them.
1153 7.1.7.C.01. Confidential, Secret, Top Secret Must Agencies MUST develop, implement and maintain tools and procedures covering the detection of potential information security incidents, incorporating: user awareness and training; counter-measures against malicious code, known attack methods and types; intrusion detection strategies; data egress monitoring & control; access control anomalies; audit analysis; system integrity checking; and vulnerability assessments.
1154 7.1.7.C.02. All Classifications Should Agencies SHOULD develop, implement and maintain tools and procedures covering the detection of potential information security incidents, incorporating: user awareness and training; counter-measures against malicious code, known attack methods and types; intrusion detection strategies; data egress monitoring & control; access control anomalies; audit analysis; system integrity checking; and vulnerability assessments.
1155 7.1.7.C.03. All Classifications Should Agencies SHOULD use the results of the security risk assessment to determine the appropriate balance of resources allocated to prevention versus resources allocated to detection of information security incidents.
1205 7.2.17.C.02. All Classifications Should Agencies SHOULD: encourage personnel to note and report any observed or suspected security weaknesses in, or threats to, systems or services; establish and follow procedures for reporting system, software or other malfunctions; put mechanisms in place to enable the types, volumes and costs of information security incidents and malfunctions to be quantified and monitored; and deal with the violation of agency information security policies and procedures by personnel through training and, where warranted, a formal disciplinary process.
1216 7.2.19.C.01. All Classifications Must The Agency ITSM, MUST report signiinficant information security incidents, or incidents related to m categorised as: Critical; Serious; or incidents related to multi-agency or government systems, ; to the NCSC (see also below) as soon as possible.
1220 7.2.20.C.01. All Classifications Should Agencies SHOULD, through an ITSM, report non-significant information security incidents categorised as Low to the NCSC.
1223 7.2.21.C.01. All Classifications Should Agencies SHOULD formally report information security incidents using the NCSC adon-line reporting fon of the TAXII, STIX and CyBox protocolsm.
1226 7.2.22.C.01. All Classifications Must Agencies that outsource their information technology services and functions MUST ensure that the service provider advises and consults with the agency when an information security incident occurs.
1233 7.2.23.C.01. All Classifications Must Agencies MUST notify all system users of any suspected or confirmed loss or compromise of keying material.
1237 7.2.25.C.01. All Classifications Must Agencies MUST urgently notify GCSB of any suspected loss or compromise of keying material associated with HGACE.
1285 7.3.8.C.03. All Classifications Should When a data spill involving classified information or contaminating classified systems occurs and systems cannot be segregated or isolated agencies SHOULD immediately contact the GNCSBC for further advice.
1290 7.3.9.C.01. All Classifications Should Agencies SHOULD follow the steps described below when malicious code is detected: isolate the infected system; decide whether to request assistance from GNCSBC; if such assistance is requested and agreed to, delay any further action until advised by GNCSBC; scan all previously connected systems and any media used within a set period leading up to the information security incident, for malicious code; isolate all infected systems and media to prevent reinfection; change all passwords and key material stored or potentially accessed from compromised systems, including any websites with password controlled access; advise system users of any relevant aspects of the compromise, including a recommendation to change all passwords on compromised systems; use up-to-date anti-malware software to remove the malware from the systems or media; monitor network traffic for malicious activity;  report the information security incident and perform any other activities specified in the IRP; and in the worst case scenario, rebuild and reinitialise the system.
1300 7.3.12.C.01. All Classifications Should Agencies SHOULD ensure that any requests for GNCSBC assistance are made as soon as possible after the information security incident is detected and that no actions which could affect the integrity of the evidence are carried out prior to GNCSBC’s involvement.
1327 8.1.11.C.02. All Classifications Should Agencies SHOULD position desks, screens and keyboards so that they cannot be away from windows and doorways so that they cannot be overseen by unauthorised peoprsons.  If required, bleinds or drapes SHOULD be fixed to the inside of windows, or fix band doors kept clinds or drapes to the inside of windows and away from doorwaysosed to avoid oversight.
1449 9.1.4.C.01. All Classifications Must Agency management MUST ensure that all personnel who have access to a system have sufficient training and ongoing information security awareness and training.
1452 9.1.5.C.01. All Classifications Must Agencies MUST provide ongoing information security awareness and traininga training programme for personnel on topics such as responsibilities, legislation and regulation, consequences of non-compliance with information security policies and procedures, and potential security risks and counter-measures.
1457 9.1.6.C.01. All Classifications Should Agencies SHOULD align the detail, content and coverage of information security awareness and training programmes to system user responsibilities.
1484 9.2.6.C.02. All Classifications Should Agencies MSHOUSTLD: limit system access on a need-to-know/need-to-access basis; provide system users with the least amount of privileges needed to undertake their duties; and have any requests for access to a system authorised by the supervisor or manager of the system user.
5626 10.6.29.C.01. Confidential, Secret, Top Secret Must Cabinet rails MUST be installed to § provide adequate room for patch cables and wire managers § A; provide adequate space for cable management at front, sides, and rear § A; and arrange switches and patch panels to minimize patching between cabinets & racks .
2662 11.3.12.C.02. Confidential, Secret, Top Secret Must Agencies MUSHOULDT use push-to-talk mechandisetms to meet the requirement for off-hook audio protection. PTT activation MUST be clearly labelled.
2767 11.5.16.C.03. All Classifications Must Where the use of personal wearable devices is permitted on medical grounds and used within a corporate or agency environment, agencies MUST ensure any relevant legislation and regulation pertaining to the protection of Personally Identifiable Information (PII) is properly managed and protectfollowed.
3460 12.4.6.C.01. All Classifications Must Agencies MUST ensure that any firmware updates are performed in a manner that verifies the integrity and authenticity of the source and of the updating process or updating utility.
3465 12.4.7.C.01. All Classifications Should Agencies SHOULD assess the security risk of continued usinge of software or IT equipment when a cessation date for support is announced or when the product is no longer supported by the developer.
3537 12.6.4.C.01. All Classifications Must Agencies MUST sanitise or destroy, then declassify, IT equipment containing any media before disposal.
3566 12.6.8.C.01. All Classifications Must Agencies MUST visually inspect video screens by turning up the brightness to the maximum level to determine if any classified information has been burnt into or persists on the screen, before redeployment or disposal.
3572 12.6.9.C.01. All Classifications Must Agencies MUST attempt to sanitise video screens with minor burn-in or image persistence by displaying a solid white image on the screen for an extended period of time. If burn-in cannot be corrected the screen MUST be processed through an approved destruction facility.
3709 12.7.21.C.01. All Classifications Should For equipment that is expected to have an extended operational life in a critical system, and in the event that the supplier is no longer able to supply these, agencies SHOULD provide for the acquisition of : necessary licences and ; information to produce spare parts, components, assemblies, ; testing equipment and ; and technical assistance agreements in the event that the supplier is no longer able to supply the equipment, products and essential spares.
3832 13.1.10.C.01. All Classifications Should Agencies SHOULD undertake a risk assessment with consideration given to proportionality in respect of : scale and impact of the processes, data, ; data; users and ; licences system and ; usage agreements; and service to be migrated or decommissioned.
4302 13.5.24.C.01. All Classifications Must Agencies MUST employ approved equipment for the purpose of media and IT Eequipment destruction MUST be performed using approved destruction equipment, facilities and methods.
4304 13.5.24.C.02. All Classifications Must Where agencyies do not own thedir approvedwn destruction equipment is not available, agencies MUST use an approved destruction facility for media and IT Eequipment destruction.
4343 13.5.25.C.01. All Classifications Must Agencies MUST, at minimum, store and handle the resulting waste for all methods, as forin accordance with the classification given in the table below. Initial media or IT Equipment classification Screen aperture size particles can pass through Less than or equal to 3mm Treat as Less than or equal to 6mm Treat as  TOP SECRET UNCLASSIFIED RESTRICTED SECRET UNCLASSIFIED RESTRICTED CONFIDENTIAL UNCLASSIFIED RESTRICTED RESTRICTED UNCLASSIFIED UNCLASSIFIED Particle size: measured in any direction, should not exceed stated measurement.
4359 13.5.27.C.03. All Classifications Should The Destruction Register SHOULD record: Date oestruction facility used; Destruction method used; Date of destruction; Operator and witnesses; Media or and IT Eequipment classification; and Media or and IT Eequipment type, characteristics and serial number.
4367 13.5.29.C.01. Top Secret Must Not Agencies MUST NOT outsource the supervision and oversight of the destruction of TOP SECRET or NZEO media and IT Eequipment or other accountable material to a non-government entity or organisation.
6019 15.2.22.C.01. All Classifications Should Before implementing DMARC agencies SHOULD: Create a DMARC policy; List all domains , in particused for the sendinglar those used for the sending and/or receiving of email; Review the configuration of SPF and DKIM for all active domains and all published domains; and Establish one or more monitored inboxes to receive DMARC reports.
6020 15.2.22.C.02. All Classifications Should Agencies SHOULD enable DMARC for all email originating from or received by their domain(s), including: sending domain owners SHOULD publish a DMARC record with a related DNS entry advising mail receivers of the characteristics of messages purporting to originate from the sender’s domain; received DMARC messages SHOULD be managed in accordance with the agency’s published DMARC policy; and agencies SHOULD produce failure reports and aggregate reports according to the agency’s DMARC policies.
1827 16.1.31.C.01. All Classifications Must Agencies MUST: develop, implement and maintain a set of policies and procedures covering all system users’: identification; authentication;  authorisation; privileged access identification and management; and make their system users aware of the agency’s policies and procedures.
2070 17.1.51.C.01. All Classifications Must Agencies using cryptographic functionality within a product for the protection of classifiedto protect the confidentiality, authentication, non-repudiation or integrity of information, MUST ensure that the product has completed a cryptographic evaluation recognised by the GCSB.
2080 17.1.53.C.02. Confidential, Secret, Top Secret Must If an agency wishes to reduce the storage or physical transfer requirements for IT equipment or media that contains classified information, they MUST encrypt the classified information using High GradAssurance Cryptographic Equipment (HGACE).   It is important to note that the classification of the information itself remains unchanged.
2081 17.1.53.C.03. Confidential, Secret, Top Secret Must If an agency wishes to use encryption to reduce the storage, handling or physical transfer requirements for IT equipment or media that contains classified information, they MUST use: full disk encryption; or partial  disk encryption where the access control will allow writing onlyONLY to the encrypted partition holding the classified information.
2082 17.1.53.C.04. All Classifications Should If an agency wishes to use encryption to reduce the storage or physical transfer requirements for IT equipment or media that contains classified information, they SHOULD use: full disk encryption; or partial  disk encryption where the access control will only allow writing ONLY to the encrypted partition holding the classified information.
2089 17.1.55.C.01. Confidential, Secret, Top Secret Must Agencies MUST use HGACE if they wish to communicate or pass information over UNCLASSIFIED, insecure or unprotected networks.
2090 17.1.55.C.02. Restricted/Sensitive Must Information or systems classified RESTRICTED or SENSITIVE MUST be encrypted with an aApproved encryption alCryptogorithm and praphic Algorithm and Protocol if information is transmitted or systems are communicating over any insecure or unprotected network such as the Internets, such as the Internet, public infrastructurenetworks or non-agency controlled networks.
2091 17.1.55.C.03. All Classifications Must Agencies MUST encrypt aggregated agency data using an approved algorithm and protocol when data is transmitted over insecure or unprotected networks such as the Internet, pubetween data centres over insecure or unprotectlic infrastructure or non-agency controlled networks such as the Internet, public inwhen the compromise ofrastructure or non-agency controlled networks the aggregated data would present a significant impact to the agency.  
2092 17.1.55.C.04. All Classifications Should Agencies SHOULD useencrypt agency data using an approved encryption productalgorithm and protocol if they wish to communicate over insecure or unprotected networks such as the Internet, public networks or non-agency controlled networks.
2097 17.1.56.C.02. All Classifications Must Agencyies MUST consult the GCSB for further advice on the powered off status and treatment of specific psoftwaroduce, systems and IT equsagipment.
2105 17.1.58.C.03. All Classifications Must Agencies using HACE MUST consult with the GCSB for the key management requirements for HGCE.
2128 17.2.17.C.01. All Classifications Must Agencies using an unevaluated product that implements an Approved Cryptographic Algorithm MUST ensure that only Approved Cryptographic Algorithms can be used when using an unevaluated product that implements a combination of approved and non-approved Cryptographic Algorithms.
2134 17.2.19.C.01. All Classifications Must Agencies using DH, for the approved use of agreeing on encryption session keys, MUST use a modulus of at least 4309672 bits.
2137 17.2.20.C.01. All Classifications Must Legacy dDevices which are NOT capable of implementing required key lengths MUST be reconfigured with the longest feasible key length as a matter of urgency.
2138 17.2.20.C.02. All Classifications Must Legacy dDevices which are NOT capable of implementing required key lengths MUST be scheduled for replacement as a matter of urgency.
2148 17.2.23.C.01. All Classifications Must Agencies using ECDSA, for the approved use of digital signatures, MUST implement the curves P-256 and P-384 (prime moduli).
2151 17.2.24.C.01. All Classifications Must Agencies using RSA, for the approved use of digital signatures and passing encryption session keys or similar keys, MUST use a modulus of at least 3072048 bits.
2155 17.2.26.C.01. All Classifications Must Agencies MUST use the SHA-2 family befor new systems. Use usingof SHA-1 is permitted ONLY for legacy systems.
5905 17.2.26.C.02. All Classifications Must Agencies MUSHOULDT use a minimum of SHA-384 when using hashing algorithms to provide integrity protection for information classified as RESTRICTED/SENSITIVE or above.
2158 17.2.28.C.01. All Classifications Should Not Agencies using approved symmetric encryption algorithms (e.g. AES or 3DES) SHOULD NOT use eElectronic cCodeb Book (ECB) mode.
2598 17.4.16.C.01. All Classifications Should Agencies SHOULD use the current version of TLS (version 1.23).
2737 17.5.9.C.01. All Classifications Should Agencies that use SSH-agent or other similar key caching programs SHOULD: only use the software on workstation and servers with screenlocks; ensure that the key cache expires within four hours of inactivity; and ensure that agent credential forwarding is used when multiple SSH transversal is needed.
3043 17.9.31.C.01. All Classifications Must Agencies MUST comply with NZCSI when using HGCP or HGACE.
3053 17.9.32.C.03. All Classifications Should Not Agencies SHOULD NOT transport commercial grade cryptographic equipment or products in a keyed state.
3290 18.2.6.C.01. All Classifications Must Agencies deploying a wireless network for public access MUST segparegate it from any other agency networks; including BYOD networks.
3617 18.2.33.C.01. All Classifications Should The effective range of wireless communications outside an agency’s area of control SHOULD be limited by: Minimising the output power level of wireless devices; and/or. Implementing RF shielding within buildings in which wireless networks are used.
3621 18.2.34.C.01. All Classifications Should Wireless networks SHOULD be sufficiently segregated through the use of channel separation.
3777 18.3.17.C.01. All Classifications Should Agencies SHOULD use access control software to control USB ports on workstations using softphones and webcams by utilising the specific vendor and product identifier of the authorised phondevice.
4015 19.4.4.C.01. All Classifications Must Agencies MUST use devices as shown in the following table for controlling the data flow of one-way gateways between networks of different classifications. High networrk Low network You require RESTRICTED   UNCLASSIFIED EAL2 or PP diode RESTRICTED EAL2 or PP diode CONFIDENTIAL   UNCLASSIFIED high assurance diode RESTRICTED high assurance diode CONFIDENTIAL high assurance diode SECRET   UNCLASSIFIED high assurance diode RESTRICTED high assurance diode CONFIDENTIAL high assurance diode SECRET high assurance diode TOP SECRET   UNCLASSIFIED high assurance diode RESTRICTED high assurance diode CONFIDENTIAL high assurance diode SECRET high assurance diode TOP SECRET high assurance diode
4710 19.5.24.C.07. All Classifications Must Agencies procuring or using VoIP or UC services to be used by multiple agencies MUST ensure all interested parties formally agree to the risks, essential controls and any residual risks of such VoIP and UC services.  The lead agency normally has this responsibility (see Chapter 2 - Information Security within Government and Chapter 4 - System Certification and Accreditation).
4715 19.5.25.C.01. All Classifications Must Agencies MUST follow the gateway requirements described in this Chapter 19 - Gateway Security.
4742 19.5.27.C.06. All Classifications Should Event logs covering all VoIP and UC services SHOULD be maintained in accordance with the requirements of the NZISM. See section 16.5 - Event logging and Auditing and 13.1.12 - Archiving.
4301 20.2.10.C.01. All Classifications Must To prevent the export of NZEO data to foreign systems, agencies MUST implement NZEO data filtering performed by a product specifically designed or configured for that purpose.
4336 20.3.8.C.01. All Classifications Should Agencies SHOULD perform content/ conversion, file conversion or both for all ingress or egress data transiting a security domain boundary.
4339 20.3.9.C.01. All Classifications Should Agencies SHOULD perform content/ and file sanitisation on suitable file types if content/ conversion or file conversion is not appropriate for data transiting a security domain boundary.
4401 20.3.11.C.01. All Classifications Should Agencies SHOULD extract the contents from archive/ and container files and subject the extracted files to content filter tests.
4402 20.3.11.C.02. All Classifications Should Agencies SHOULD perform controlled inspection of archive/ and container files to ensure that content filter performance orand availability is not adversely affected.
4406 20.3.12.C.01. Confidential, Secret, Top Secret Must Agencies MUST identify, create and enforce a whitelist of permitted content types based on business requirements and the results of a security risk assessment.
4407 20.3.12.C.02. All Classifications Should Agencies SHOULD identify, create and enforce a whitelist of permitted content types based on business requirements and the results of a security risk assessment.
4483 21.1.13.C.01. Confidential, Secret, Top Secret Must Agencies unable to lower the storage and physical transfer requirements of a mobile device to an unclassified level through the use of encryption MUST physically store or transfer the device as a classified asset in accordance with the relevant handling instructions (refer to the PSR).
4485 21.1.13.C.03. All Classifications Should Agencies unable to lower the storage and physical transfer requirements of a mobile device to an unclassified level through the use of encryption SHOULD physically store or transfer the device as a classified asset in accordance with the relevant handling instructions (refer to the PSR).
4541 21.2.4.C.01. All Classifications Must Not Agencies MUST NOT allow personnel to access or communicate classified information on mobile devices outside of secure areas unless there is a reduced chance of being overheard orand having the screen of the device observed.
4555 21.2.7.C.02. All Classifications Must Travelling personnel requested to decrypt mobile devices for inspection or from whom mobile devices are taken out of sight by customs personnel or from whom mobile devices are taken out of sight by customs personneborder control MUST report the potential compromise of classified information or the device to an ITSM as soon as possible.
4650 21.4.10.C.16. All Classifications Must The responsibility for payment of voice and data plans and roaming charges MUST be specified and agreed.
4658 21.4.11.C.04. All Classifications Must Network configuration policies and authentication mechanisms MUST be configured to allow access to agency resources ONLY through the BYOD network segment.
4660 21.4.11.C.06. All Classifications Must Wireless accesses points used for access to agency networks MUST be implemented and secured in accordance with the directions in this manual (See Section 18.2 – Wireless Local Area Networks).
4666 21.4.11.C.12. All Classifications Must BYOD MUST have a Mobile Device Management (MDM) solution implemented with a minimum of the following enabled: The MDM is enabled to “wipe” devices of any agency data if lost or stolen; If the MDM cannot discriminate between agency and personal data, all data, including personal data, is deleted if the device is lost or stolen; The MDM is capable of remotely applying agency security configurations for BYOD devices; Mobile device security configurations are validated (health check) by the MDM before a device is permitted to connect to the agency’s systems; “Jail-broken”, “rooted” or settings violations MUST be detected and isolated;  “Jail-broken” devices are NOT permitted to access agency resources;  Access to agency resources is limited until the device and/orboth the device and user is fully compliant with policy and SOPs; Auditing and logging is enabled; and Changes of Subscriber Identity Module (SIM) card are monitored to allow remote blocking and wiping in the event of theft or compromise.
4667 21.4.11.C.13. All Classifications Must Appropriate iIntrusion detection systems MUST be implemented.
4675 21.4.11.C.20. All Classifications Should BYOD devices and systems SHOULD use Multi-factor (at least two-factor) authentication to connect to agency systems and prior to being permitted access to agency data.
4680 21.4.12.C.02. All Classifications Must Agencies MUST implement rogue AP and wireless “hot spot” detection and implement appropriate response procedures where detection occurs.
4681 21.4.12.C.03. All Classifications Should Agencies SHOULD conduct a baseline survey to identify: Known andAll authorised devices and AP’s; and KAnown andy unauthorised devices and AP’s.
4686 21.4.13.C.03. All Classifications Must The use of virtual containers, sandboxes, wraps or similar mechanisms on the mobile device MUST be established for each authorised session for any organisational data.  These virtual containermechanisms MUST be non-persistent and be removed at the end of each session.
4687 21.4.13.C.04. All Classifications Must Any sensitive agency data MUST be removed/ and securely deleted, or encrypted at the end of a session.
4690 21.4.13.C.07. All Classifications Must Agencies MUST disable split-tunnelling when using a BYOD device to connect to an agency network (See Section 21.1 – Agency Owned Mobile Devices).
4692 21.4.13.C.09. All Classifications Must The use of passwords or PINs to unlock the BYOD device MUST be enforced in addition to all other agency authentication mechanisms agency access.
4693 21.4.13.C.10. All Classifications Must BYOD device passwords MUST be distinct from any agency access and authentication passwords.
4812 22.1.21.C.05. All Classifications Must Agencies MUST consult with the GCIDO to ensure the strategic and other cloud risks are comprehensively assessed.
4813 22.1.21.C.06. All Classifications Must Agencies procuring or using cloud services to be used by multiple agencies MUST ensure all interested parties formally agree the risks, essential controls and any residual risks of such cloud services.
4814 22.1.21.C.07. All Classifications Must Agencies using cloud services MUST ensure they have conducted a documented risk assessment, accepted any residual risks, and followed the endorsement procedure required by the GCIDO.
4822 22.1.22.C.03. All Classifications Must Agencies using cloud services hosted offshore and connected to All-of-Government systems MUST ensure they have conducted a risk assessment, accepted any residual risks, and followed the endorsement procedure required by the GCIDO.