An exemplary system includes 1) at least one computing device within a first computing subsystem associated with a hosted media content service, the at least one computing device configured to authenticate a user to the hosted media content service and provide at least one encrypted token to a user device associated with the user, and 2) at least one other computing device within a second computing subsystem associated with the hosted media content service, the at least one other computing device configured to store hosted media content associated with the hosted media content service, receive the at least one encrypted token from the user device, validate the at least one encrypted token, and perform, in response to the validation, at least one action on media content as part of the hosted media content service. Corresponding methods and systems are also disclosed.