New Zealand Information Security Manual (NZISM) 18.1.12.C.01: 18.1.12.C.01 Keep classified network diagrams current and dated

For CONFIDENTIAL, SECRET and TOP SECRET systems, an agency's network diagrams must be updated whenever network changes are made, and every page must carry a 'Current as at [date]' statement.

Maintained by Gerard BlokdykVerified against the published standard 31 May 2026Control text last updated 21 May 2026

Other controls in Chapter 18: Network security – New Zealand Information Security Manual (NZISM)

18.1.10.C.01 18.1.10.C.01 Network configuration controlled by a management authority
18.1.10.C.02 18.1.10.C.02 Formal change control for configuration changes
18.1.10.C.03 18.1.10.C.03 Regular review of network against documented configuration
18.1.10.C.04 18.1.10.C.04 Automated comparison of running and documented configuration
18.1.11.C.01 18.1.11.C.01 High-level and equipment network diagrams for every network
18.1.12.C.02 18.1.12.C.02 Update network diagrams and date every page
18.1.13.C.01 18.1.13.C.01 Network access controls on all classified networks
18.1.13.C.02 18.1.13.C.02 Network access controls on every network

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpoint All New Zealand Information Security Manual (NZISM) controls