Board guides · Practical companion

What does good cyber evidence look like?

What to ask for, what it tells you and where its limits lie.

A board paper says the controls are effective, recovery has been tested and the major findings are closed. What gives you confidence those conclusions are justified? Use it alongside our other board guides, or on its own.

6-page PDF Prepared by Professor Buck Rogers
Front cover of the Poro Advisory guide: What does good cyber evidence look like?

What's inside

  • Begin with the claim

    Turn broad statements like “our recovery arrangements work” into specific conclusions the board can actually examine.

  • Look for a traceable basis

    What a useful board paper summarises — results, limitations and a clear route to the supporting records, without raw technical logs.

  • Five familiar assurances

    Practical examples of the evidence worth discussing behind common cyber assurances, as prompts for board judgement.

  • Make room for uncertainty

    How to weigh what hasn’t been tested — and decide between further work, a temporary safeguard or explicit risk acceptance.

Claim · Evidence · Judgement

What are we being asked to accept? What was checked and what did it show? What can we reasonably conclude?

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