Facebook clients are falling for so far one more clickjacking con that tricks them keen on "liking" a page. This one attract victims with message "Paramore n-a-k-ed photo leaked," which assert to tip to a Web site have a bare picture of Hayley Williams, main singer in the rock band Paramore.

But pressing forward only brings the Facebook client to a page which, unbeknownst to the victim, has concealed code that performs the act of "liking" the Web page.

That act gets published on the victim's Facebook page and shared with online friends, according to safety firm Sophos, which has been tracking this kind of assault, which it calls "likejacking."

Sophos leading technical advisor says the likejacking assault that efforts to gull client with the message 'Paramore n-a-k-ed photo leaked!' will get victims to a third-party Web site, which shows a message that says: "Press here to carry on if you are 18 years or more." But don't do it, he says, writing a blog on theme.

"What the hackers have really complete is extremely devious. They have concealed an unseen button beneath your mouse, so wherever you press on the website your mouse-click is hijacked.

As a result, when you press with mouse you are also secretly pressing on a button which says Facebook that you 'like' the webpage.

This then gets published on your own Facebook page, and shared with your online friends, resultant in the link dispersal virally," Cluley says. It's strictly alike to the previous likejacking use in that it creates use of what's called an iFrame use.