Spammers are nothing if not clever. Realizing that the increased sensitivity threshold of filters was thwarting their attempts, they turned to a different, more elusive, spamming method: image spam.

A new type of image spam puts text within wallpaper, or e-mail stationery, to bypass spam filters. A new type of image spam found this week is able to bypass many filters by presenting a message as ...

Image spam—e-mail solicitations that use graphical images of text—is not new. But its rising sophistication has made much of it invisible to spam filters so that it makes up one-third of all spam, ...

Spam, or unsolicited e-mail, is an old Internet nemesis, but spammers have come up with a new twist, and it’s causing corporate and individual users alike e-heartburn. It’s called “image spam,” and it ...

Spammers have recently turned high-tech, using layers of images to fool automatic filters. Thanks to some sophisticated new cyber-sleuthing, researchers are working toward a cure. Once upon a time, ...