Policy Intelligence offers several tools to help youunderstand service account usage in your projects. These tools can help youanswer the following questions:

• When was the last time that a specific service account or key was used toauthenticate?
• Which service accounts in my project have not been used in the past 90 days?

Other Google Cloud products offer tools to help you recognize suspiciousservice account activity:

• Cloud Monitoring provides long-term usage metrics forservice accounts and keys that you can use to detect anomalies.
• Event Threat Detection reports when dormant service accounts triggeractions. Dormant service accounts are service accounts that have been inactivefor more than 180 days.

To learn more about these tools and their intended uses, seeTools tounderstand service account usage in thePolicy Intelligence documentation.