A system and method of securing a computing device with a remote computer security service includes: identifying a computing device that is subscribed to a remote computer security service, wherein the computing device comprises an anti-authentication application instance provided by the remote computer security service based on the subscription; identifying an occurrence of an anti-authentication action involving the computing device based on anti-authentication policy set to a subscriber anti-authentication account with the remote computer security service for the computing device; responsively to the anti-authentication action, automatically performing by the remote security service or the anti-authentication application instance one or more anti-authentication protective services by protectively altering the computing device based on the anti-authentication policy, wherein the computing device is altered to a protected state from a normal state based on the performance of the one or more anti-authentication protective services.