The external backup drive has ONLY been connected to my Mac which has had Norton Antivirus the whole time. Can someone comment on how the drive can be infected if I've had Norton the whole time? Norton did NOT quarantine these.... I checked quarantine.... it says repair failed, or no permission to access... so I'm not sure what steps to take.
Do I need to get rid of the external drive? How can I trust the antivirus system if it let these get onto the external drive?
Any help much appreciated!