Called 1-800-239-3013 to activate a new McAfee activation card and got hooked up with scammers. They had control of my computer screen and said I had 30 foreign people that have broken into my firewall and showed this on my screen. They wanted to have a tech spend an hour on my computer to clean and install a new firewall. The number wasn't the one on my card I bought, so flags went up. I called the number on the card I bought. This was the real number and told me the other number was a scam. Not knowing what info that may have been taken, I cancelled my online Credit cards information. Had I let the scammers into my computer for an hour, they would have stolen my identity.