Don't let someone reach out and touch you

Next time you receive an email postcard from a friend, you might just want to delete it without opening it:

Beware of Web postcards bearing greetings. That's the advice from the SANS Institute's Internet Storm Center, which is warning about e-mail messages that pose as Web postcards and then direct recipients to a Web site that installs a Trojan horse program. The new attacks use sophisticated social-engineering techniques to trick users into installing Trojan horse remote-access programs that can fool antivirus and firewall software by appearing to be authorized applications like Internet Relay Chat software, according to the Internet Storm Center (ISC).