SkillCoded

Security Operations

Evidence Preservation and Chain of Custody

Preserve digital evidence through defined authority, reproducible collection, integrity verification, chain-of-custody records, and protected storage.

Intermediate14 min read
Security Operations lessonCybersecurity foundationsPractice

UNTIMED COACHING

Practice before the pressure

Use feedback to correct the model, not merely memorize an option position.

GUIDED PRACTICE

Practice the lesson questions

Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.

CONCEPT MODELS

See the lesson as a system

Use these visual guides to connect the key ideas before answering the questions.

Connect the roles in Evidence Preservation and Chain of CustodyKeep collection authority, order of collection, integrity verification, and chain of custody as separate roles.
Connect the roles in Evidence Preservation and Chain of CustodyA topic-specific model connects four distinct roles used to reason about evidence preservation and chain of custody.
Authority decisionDecision defines permitted evidence handling
Collection processProcess preserves volatile and relevant state
Hash valueData digest detects evidence modification
Custody recordRecord tracks handler time purpose and location
Verify Protected Evidence StoreConnect protected evidence store with its topic-specific inspection, expected outcome, and safety boundary.
Verify Protected Evidence StoreA verification model for evidence preservation and chain of custody connects the final decision to evidence, outcome, and a protected boundary.
Evidence accessAccess limits readers and preserves evidence
Starting checkInspect evidence access evidence
Expected resultVerify evidence access result
Safety boundaryProtect authority decision state