A system and a method are provided for facilitating the security of sets of credentials. The system and method allow a user to lock or unlock a credential set of at least one user account. The user attempts to access the user account as standard procedure. Before a service provider goes through an authentication process, a third-party server of a service provider requests a token from the system. Based on if the credential set is in a locked status or unlocked status, at least one remote server of the system respectively relays an invalidation token or a validation token to the third-party server. If the invalidation token is relayed to the third-party server, the service provider does not go through the authentication process. If the validation token is relayed to the third-party server, the service provider proceeds with the authentication process as standard procedure.