In the past week, I have talked with several people who experienced what I call "the phone scam". It's where you call somewhere for Tech Support and end up being told that your computer has been hacked or that you need to purchase security software. This is almost always a scam.
Avoid calling Tech Support out of the local area. Ask for help with technology problems from friends and family first. I've seen lots of people lose significant money and time as a result of these kinds of scams.