How should suspected insider misuse be reported?¶

The practical answer¶

Suspected insider misuse should be reported by separating technical activity, authority, intent, personal attribution and organisational control failure.

The key evidential caution¶

The dangerous assumption is that one broad label such as “malicious insider” explains the evidence.

It does not.

A defensible report should identify:

Key points¶

• the account and system activity
• the person’s legitimate role and access
• the action outside authority
• the data or service affected
• the device and session evidence
• the resulting harm
• the evidence of intent
• alternative users or explanations
• control weaknesses
• remaining uncertainty

Use precise language.

“The employee account accessed the file” is different from “the employee deliberately stole the file.”

“The data was copied to a personal service” is different from “the data was disclosed to a third party.”

“The action breached policy” is different from “the action was criminal or malicious.”

Where access controls were excessive, accounts shared or offboarding incomplete, report those failures separately.

The report should also distinguish individual conduct from organisational conditions that enabled it. Excessive access, weak monitoring, shared accounts and poor offboarding may explain opportunity without excusing misuse. Those control failures should be recorded as separate findings and remediation issues.

Where intent cannot be resolved, report the supported alternatives rather than forcing a malicious or accidental conclusion. The technical facts may still justify containment, notification or disciplinary review even when personal motive remains uncertain.

State those unresolved alternatives clearly in the final assessment.

Operational takeaway¶

Report insider misuse as a structured assessment of activity, authority, person, intent and control weakness rather than relying on the insider label alone.