The ultimate audit guide to ISO 27001 Annex A 7.13 Equipment Maintenance
Table of contents
- 1. Off-premises Asset Authorisation Records Verified
- 2. Off-premises Asset Security Policy Formalised
- 3. Full Disk Encryption (FDE) Enforcement Validated
- 4. Physical Protection Training and Awareness Verified
- 5. Remote Wipe and Tracking Capabilities Confirmed
- 6. Secure Connection (VPN) Mandate Validated
- 7. Off-premises Asset Maintenance and Patching Verified
- 8. Public Display Privacy Controls Confirmed
- 9. Off-premises Asset Inventory Reconciliation Verified
- 10. Return of Assets Procedure Integrity Validated
1. Off-premises Asset Authorisation Records Verified
Verification Criteria: Every instance of an information processing asset being removed from the organisation’s premises is supported by a documented authorisation from an appropriate level of management.
Required Evidence: Approved Asset Removal Requests or digital authorisation logs within the ITSM or HR system.
Pass/Fail Test: If a physical asset is missing from the office but has no corresponding recorded management approval for its removal, mark as Non-compliant.
2. Off-premises Asset Security Policy Formalised
Verification Criteria: A documented policy exists that explicitly defines the security standards, handling requirements, and personal responsibilities for assets used in remote or public environments.
Required Evidence: Approved “Mobile Working Policy” or “Off-premises Asset Policy” with evidence of recent management review.
Pass/Fail Test: If the organisation lacks a formalised set of rules for protecting assets outside the office (e.g., in transit or home offices), mark as Non-compliant.
3. Full Disk Encryption (FDE) Enforcement Validated
Verification Criteria: Technical controls are active on all portable devices to ensure that data remains inaccessible in the event of theft or loss during off-premises use.
Required Evidence: MDM (Mobile Device Management) or Endpoint Management reports showing “Encrypted” status for 100% of sampled remote endpoints.
Pass/Fail Test: If a sampled off-premises laptop is found to have BitLocker, FileVault, or equivalent encryption disabled or not managed centrally, mark as Non-compliant.
4. Physical Protection Training and Awareness Verified
Verification Criteria: Personnel are formally required to maintain physical custody of assets in transit and avoid leaving them unattended in public places or unmonitored vehicles.
Required Evidence: Signed “Asset Acceptance Forms” containing transit security clauses and training logs covering physical theft prevention.
Pass/Fail Test: If the organisation cannot prove that users were briefed on the specific risks of leaving hardware in vehicles or public spaces, mark as Non-compliant.
5. Remote Wipe and Tracking Capabilities Confirmed
Verification Criteria: The organisation possesses the technical capability to remotely lock, locate, or wipe off-premises assets that are reported as lost or stolen.
Required Evidence: MDM dashboard screenshots demonstrating remote command functionality and logs of any historical wipe executions.
Pass/Fail Test: If the organisation cannot technically execute a remote wipe command on a sampled mobile asset, mark as Non-compliant.
6. Secure Connection (VPN) Mandate Validated
Verification Criteria: Technical configurations ensure that off-premises assets must utilise a secure encrypted tunnel to access internal organisational resources.
Required Evidence: VPN configuration profiles on endpoints or firewall logs showing remote access limited to authorised encrypted tunnels.
Pass/Fail Test: If a remote asset can access internal file shares or sensitive SaaS applications over public internet without an active VPN or ZTNA tunnel, mark as Non-compliant.
7. Off-premises Asset Maintenance and Patching Verified
Verification Criteria: Assets used primarily off-premises receive regular security patches and antivirus updates despite their physical location.
Required Evidence: Patch management dashboard showing “Compliant” status for devices that have not connected to the local office network for >30 days.
Pass/Fail Test: If off-premises assets show a significant lag in critical security updates compared to on-premises assets, mark as Non-compliant.
8. Public Display Privacy Controls Confirmed
Verification Criteria: Procedures or technical tools are utilised to prevent the unauthorised viewing of sensitive data on screens in public spaces (“shoulder surfing”).
Required Evidence: Physical sighting of privacy filters on sampled remote hardware or documented guidance on visual privacy in the remote work policy.
Pass/Fail Test: If staff handling high-sensitivity data are found working in public areas without privacy filters or explicit visual security guidance, mark as Non-compliant.
9. Off-premises Asset Inventory Reconciliation Verified
Verification Criteria: The organisation performs periodic audits to confirm the location, status, and integrity of all assets assigned for off-premises use.
Required Evidence: Annual asset reconciliation report or timestamped “Last Seen” reports for the entire mobile asset inventory.
Pass/Fail Test: If the organisation cannot verify the “Last Seen” status or physical existence of a sampled off-premises asset within the previous 90 days, mark as Non-compliant.
10. Return of Assets Procedure Integrity Validated
Verification Criteria: A formalised process ensures that all off-premises assets are returned, inspected, and securely wiped upon termination of employment or role change.
Required Evidence: Signed Off-boarding Checklists and technical logs confirming data sanitisation before asset reissue.
Pass/Fail Test: If an asset returned from off-premises use is reissued to a different user without a recorded data wipe/sanitisation step, mark as Non-compliant.