HARBOR-17 / 07 / PRACTICE GUIDE
Response, impact boundaries and clean recovery
Do not confuse file deletion with containment or service uptime with recovery. Connect identity, persistence, business impact and validation.
Download guide and workpapersOriginal AI-assisted SecNet educational content; examples are fictional. Not a source organization publication or endorsement. Sources checked: 2026-10-21.
EVIDENCE REVIEW DESK
Move from observations to decisions.
Code here is a local policy model with no target connection. Passing model cases are not security approval or device tests.
File removed / Incomplete decision
Inspect an incomplete decision based on record existence or another positive signal. Consider denial cases alongside permitted use.
s=>s.fileRemovedFile removal does not close identity, persistence or related scope. Deletion evidence alone cannot establish completed containment.
Choices and outputs last only on this open page; they do not update account progress, career status, points or certificates.
01 / EXPLANATION
Authorized proportionate containment
Containment needs ownership, scope, service-impact assessment and rollback conditions. When ongoing harm competes with evidence collection, record decision time and rationale. Define emergency authority in advance. Exercise outputs change no real accounts, devices or networks and generate no live response commands. A stopped flag cannot establish that every source is contained.
02 / EXPLANATION
Origin and persistent access
Identity or application authority can survive file deletion. Review process, task/service, mailbox-rule and related-account scope. Verify action effects through observed outcomes, such as denied old test sessions. Coordinate collection and authority changes with clear owners. Record rationale and side effects in the incident timeline rather than filling the report with assumed successes afterward.
03 / EXPLANATION
Functional clean recovery
HTTP200 or serviceUp is only a technical start. Require a trusted revision, renewed authority, integrity and business-transaction tests. Reverify roles and tenant boundaries. Define monitoring coverage, observation period and who acts if signals recur. Hand over residual risks with owners and deadlines. Notification duties require incident-specific authorized review; the exercise makes no automatic legal breach decision.
04 / EXPLANATION
Harbor-17 before closure
Suppose the user deletes the message and report-viewer stops. If session authority, mailbox grants and sensor gaps remain unknown, fileRemoved is not containment. The decision card names missing-evidence owners, controlled constraints and business-validation steps. Observed clean access and legitimate workflows support recovery. This fictional desk performs no isolation or restoration; it teaches which evidence would change a decision.
Build the evidence yourself.
Blank workpapers are not completed tests. Fill them in your authorized environment without secrets or real personal data.
Full guide with code, outputs and reasoning ↓Primary references
Explanations are authored by SecNet. References support method and platform context; verify current editions and organizational policy for real use.