Ticketmaster unveils its Facebook "Timeline App" at Facebook launch event at 25 Lusk restaurant in San Francisco Photo: Reuters

Popular social networking Web site Facebook has accused Adscend Media of "clickjacking"; Adscend has reportedly spread spam through misleading and deceptive tactics.

The company has been accused of placing photographs, advertisements and posts on users' homepages in Facebook and concealing the "Like" button in the process. Users are then duped into believing it to be a legitimate source and visiting the third-party Web site, in the process earning enormous amounts of revenue for the firm.

The defendant has, predictably, strongly denied the allegations. Facebook, meanwhile, is apparently ramping up security measures.

"Facebook's security professionals have made tremendous strides against this particular form of attack and we are intent on eradicating it completely," said Craig Clark, the company's chief litigation advisor.

"We will continue to use all tools at our disposal to ensure that scammers do not profit from misusing Facebook's services," he further added.

In a related development, the U.S. state of Washington has also filed a similar suit against Adscend. The state's lawyers are of the opinion this is the first instance any state has gone to court to eradicate spam on social networks.

"We don't "like" schemes that illegally trick Facebook users into giving up personal information or paying for unwanted subscription services through spam," said the state's Attorney General, Rob McKenna.

According to reports, Adscend has earned up to £766,000 per month ($1.2 million) from its business. Furthermore, its lawyer, Mark Rosenberg, blamed Washington state authorities of being irresponsible and stated the company would take appropriate measures if any of their affiliates had engaged in illicit activity.

"We find it deeply troubling that the Attorney General's office made a public spectacle of these serious allegations without first questioning the company as part of its investigatory process and, even more inexplicably, without notifying the company that the complaint was being filed," said Rosenberg. He further added Adscend Media was prepared to take legal action against the culprits for tarnishing the reputation of the company.

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