Nearly every computer user is familiar with spam mail - the annoying, unsolicited email clogs mail folders and takes time to delete. But with new advances in spam technology, it could become much more than a simple nuisance.
Now spammers are spying on those who open their mails, using technology called "web bugs." Inserted into the spam is an invisible image, which is able to capture and send back to the originator personal information.
This data include info about the recipient's computer, operating system, and web addresses. And web bugs have potential for even more harm, as they could carry devastating viruses, able to do much damage with the information they steal.