An official Sony representative says that the PS3 bug yesterday “is being caused by a bug in the clock functionality incorporated in the system.” They are currently planning on restoring service within 24-hours. Also, if you do now own a PS3 Slim, they “advise that you do not use your PS3 system, as doing so may result in errors in some functionality, such as recording obtained trophies, and not being able to restore certain data.” More information.
An official Sony representative says that the PS3 bug yesterday “is being caused by a bug in the clock functionality incorporated in the system.” They are currently planning on restoring service within 24-hours. Also, if you do now own a PS3 Slim, they “advise that you do not use your PS3 system, as doing so may result in errors in some functionality, such as recording obtained trophies, and not being able to restore certain data.” More information.