Tech-support scammers traditionally are people who dial random numbers and try to convince the people on the other end of the phone that their computer has problems and they can fix them if the user allows them to remote into the device. They use tactics that are as generic and vague as possible, to avoid having to mention any specifics; and, since some people (especially those who have computers that are a few years old) find that their system’s performance is sluggish, they will give these people access. This typically ends in disaster.