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CompTIA CySA+ CS0-004 · Domain 3: Incident response & management

Evidence acquisition: order of volatility, chain of custody, legal hold, forensic imaging and hash validation

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Last reviewed September 30, 2026 · Leer en español

Evidence gathered during an incident may end up in court, in a regulator's review or in an insurance claim, and it is also what you rely on to understand what happened. Collecting it correctly means capturing it before it disappears, proving it has not been altered and documenting who handled it. The exam tests four related ideas: the order of volatility, chain of custody, legal hold, and forensic imaging with hash validation.

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