This detection rule identifies events in Okta's system log where an API token has been revoked. When an API token is revoked, it typically indicates a security event that could signify unauthorized access or abuse of access rights. The detection logic specifically looks for events categorized with the 'eventtype' attribute set to 'system.api_token.revoke'. This rule is important for tracking API token management and assessing any deviations in usage patterns that could suggest malicious activity or mismanagement within the identity management system.