domainwidedelegation.comGet it set up

Use cases → Admin and governance

Detect unusual user behaviour with delegated access

Monitor login, email, and Drive patterns for anomalies using a service account and act before a breach or compliance issue escalates.

Who it is forSecurity and compliance teams responsible for monitoring Workspace activity.
APIsAdmin SDK, Gmail API, Drive API
Typical scopesadmin.reports.audit.readonly, gmail.readonly, drive.readonly

The problem

Unusual patterns—like sudden mass downloads, atypical login locations, or bursts of outbound mail—are warning signs. Manual review is slow and rarely catches incidents before damage is done.

How it works

  1. Schedule regular scans of audit logs and recent activity using the Admin SDK Reports API.
  2. Cross-reference with recent Gmail and Drive activity for flagged users, using delegated service account access.
  3. Apply statistical or rule-based checks to detect outliers in behaviour.
  4. Alert or trigger escalation workflows when anomalies are detected.

What changes

Incidents are surfaced early, with context, so investigation can begin before the impact spreads.

The trap in this one. The Reports API is eventually consistent—login and file activity can take hours to appear. Relying on real-time detection will miss fast-moving incidents or generate false negatives. Design detection with this lag in mind, and avoid assuming the latest activity is always visible.

Questions people ask

Can this pattern detect compromised accounts in real time?

No, the underlying APIs lag real events by minutes to hours. It's best used for near-real-time detection, not immediate response.

Does this require user consent?

No, when using domain-wide delegation, the service account can access audit and activity data for all users without individual prompts.

Want this built?

This is a pattern we run in production. We will set up the delegation and build this on top of it — $500 per hour, most of it working the same day.

Talk to us Or read the setup guide

Related use cases

Automate joiners, movers and leavers

Create accounts, set group membership, provision Drive and hand over mailboxes without a manual checklist.

Continuously verify your delegation still works

A scheduled probe that proves every API still answers under every tenant, before a customer finds out otherwise.

Reduce an over-broad delegation grant safely

Find out which scopes your automation genuinely uses, then cut the grant down to them.