GitGuardian has introduced Validity Checks for Internal Repositories Monitoring to enhance application security by allowing users to verify if leaked credentials are still valid. This feature enables prioritization of incident remediation, as valid exposed credentials pose a security threat and need immediate attention. Validity Checks work by using specific and generic detectors, which analyze the source code to identify secrets and then attempt to verify their validity through the least intrusive calls to associated services. The results can indicate whether a secret is valid, invalid, unverifiable, or unknown, aiding security teams in obtaining proof of revocation and enabling developers to confirm remediation actions. Although currently optimized for specific secrets, GitGuardian aims to extend validity checks to generic secrets by allowing users to configure custom endpoints, thus improving the monitoring process.