Software that may make the data collected by the Phorm advertising service completely useless has been released by a privacy group.

The AntiPhorm Group, which describes itself as "a loose conglomeration of concerned individuals comprised of artists, programmers and designers" has created AntiPhormLite in a bid to prevent ISPs tracking and subsequently profiting from their customers surfing habits.

The controversial Phorm advertising system identifies websites users visit and keywords they use, and uses that data to target advertising towards individual web surfers. AntiPhormLite is designed to hobble Phorm by working in the background to visit random sites, thus providing a false picture of the sites users visit.

"It connects to the web and intelligently simulates natural surfing behaviour across thousands of customisable topics," the AntiPhorm Group claims on its website.

"This creates a background noise of false information disguising and inverting your own interests. We believe our technology is indistinguishable from that of a typical user engaging the internet."

BT, Virgin Media and Talk Talk are among the ISPs that have already held discussions with Phorm with regards to using its technology.

"It appears we can't stop your ISP tracking and selling your surfing behaviour but one solution could be to make the data they do collect absolutely worthless to their clients," the AntiPhorm Group adds.