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Annex A 5.5 verified ISO/IEC 27001:2022

Establish and Maintain Contact with Authorities

Ensure you can quickly contact authorities like police or regulators for security issues.

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Plain language

This control is about making sure your organisation can quickly get in touch with the right authorities, like the police or regulators, when a security issue happens. This is important because delays in contacting authorities can make security problems worse and harder to fix.

Framework

ISO/IEC 27001:2022

Control effect

Proactive

ISO 27001 domain

Organisational controls

Classifications

N/A

Official last update

24 Oct 2022

Control Stack last updated

18 May 2026

Maturity levels

N/A

Official control statement

The organisation shall establish and maintain contact with relevant authorities.
verified ISO/IEC 27001:2022 Annex A 5.5
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Why it matters

Delayed or absent contact with authorities can escalate incidents, causing reputational damage and regulatory or legal consequences.

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Operational notes

Regularly test and update authority contact details, after-hours numbers, and liaison roles so escalation to relevant regulators or police works in an emergency.

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Implementation tips

  • Senior Management should designate a contact person within the organisation who will be responsible for communication with authorities. This person should be well-versed in the organisation's security policies and have the authority to make necessary decisions.
  • The IT manager should establish a contact list of relevant authorities, such as local police, data protection offices, and regulatory bodies. This list should include names, phone numbers, and email addresses and should be regularly updated.
  • The Risk Officer should develop a procedure for when and how authorities should be contacted during security incidents. This procedure should be simple, clear, and included in the organisation’s incident response plan.
  • HR should ensure that training is provided to all employees about the importance of timely reporting of security incidents and who to notify in such events, according to the procedure established.
  • Compliance Officers should regularly review current and upcoming regulations related to information security, to ensure that the organisation's policies and procedures remain in compliance and communicate any changes to relevant personnel.
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Audit / evidence tips

  • AskRequest to see the list of relevant authority contacts. GoodThe contact list is comprehensive, up-to-date, and accessible to those who need it.
  • AskAsk to review the procedure for contacting authorities during security incidents. GoodThe procedure is clear, documented, and staff are aware of it.
  • AskAsk for records of any communications or incidents that required contact with authorities. GoodRecords are well-documented and demonstrate a timely response to incidents.
  • AskInquire about employee training materials regarding reporting procedures for security issues. GoodTraining materials are comprehensive and routinely delivered to all employees.
  • AskRequest any meeting notes or communications with regulatory bodies regarding compliance and security expectations. GoodRegular communication is maintained with authorities, demonstrating proactive compliance management.
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Cross-framework mappings

How Annex A 5.5 relates to controls across ISO/IEC 27001, ISO/IEC 42001, Essential Eight, and ASD ISM.

E8

Control Notes Details
handshake Supports (3) expand_less
E8-MF-ML2.11 E8-MF-ML2.11 requires cyber security incidents to be reported to ASD as soon as possible after they occur or are discovered
E8-RA-ML2.12 E8-RA-ML2.12 requires cyber security incidents to be reported to ASD as soon as possible after they occur or are discovered
E8-AH-ML2.17 E8-AH-ML2.17 requires prompt reporting of cyber security incidents to ASD

ASD ISM

Control Notes Details
layers Partially meets (1) expand_less
ISM-0140 Annex A 5.5 requires the organisation to establish and maintain contact with relevant authorities to support rapid coordination during se...
sync_alt Partially overlaps (1) expand_less
ISM-1755 ISM-1755 requires organisations to develop, implement and maintain a vulnerability disclosure policy to enable secure reporting and coord...
handshake Supports (7) expand_less
ISM-0039 ISM-0039 requires the organisation to maintain a cyber security strategy that remains aligned to the operating and regulatory environment
ISM-0043 Annex A 5.5 requires the organisation to establish and maintain contact with relevant authorities so engagement can occur quickly when ne...
ISM-0138 ISM-0138 mandates that investigators maintain evidence integrity and follow instructions from law enforcement
ISM-0181 ISM-0181 stipulates that cabling must meet Australian Standards as directed by ACMA
ISM-0249 ISM-0249 requires system owners deploying SECRET or TOP SECRET systems on mobile platforms or as a deployable capability to contact ASD f...
ISM-0576 ISM-0576 requires an incident management policy and incident response plan that are implemented and maintained, which typically include e...
ISM-1137 ISM-1137 requires system owners deploying SECRET or TOP SECRET systems in fixed facilities to contact ASD for an emanation security threa...

ISO 42001

Control Notes Details
handshake Supports (1) expand_less
Annex A 8.5 Annex A 8.5 (ISO/IEC 42001) involves documenting AI-system information reporting obligations to interested parties, such as regulators or...

These mappings show relationships between controls across frameworks. They do not imply full equivalence or certification.

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Want to implement this control?

Mindset Cyber runs PECB-accredited ISO/IEC 27001 training that maps directly to the controls in this library.

Mapping detail

Mapping

Direction

Controls