User accessed multiple O365 AIP sensitive files

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	1 Hour
Deduplication Period	1 Day
Required Data	Office 365 Audit
Detection Modules	Identity Threat Module, SaaS Threat Detection
Detector Tags	O365 DLP Analytics
ATT&CK Tactic	Collection (TA0009)
ATT&CK Technique	Data from Information Repositories (T1213), Data from Local System (T1005)
Severity	Informational

Description

A user accessed multiple O365 AIP sensitive files.

Attacker's Goals

An attacker is attempting to collect sensitive information.

Investigative actions

• Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
• Follow further actions done by the account.
• Check what sensitivity labels are detected and how suspicious they are.
• Examine the user's account history for suspicious behavior.