TorRecently, we wrote about how to find out if your computer had been hacked and turned into a zombie that sends out spam and viruses. Then a wary reader wrote to ask us if a hacker could find out your name and address just by finding your computer’s “IP address.” (IP stands for Internet Protocol and the number attached to is unique to each user.)

In short, no, they can’t use that number to get your address. They can find out your city and state but would need a subpoena to get your name and address. Still, you might want to protect your IP address for security reasons. Go to to get more info on this and to download the free “Tor” program for making your computer invisible while you surf the web. There’s also info at


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