The spread of break-CAPTCHA tools has resulted in a sudden increase in the use of blogging sites such as Google BlogSpot for ads receiving spam, the security vendor has MessageLabs Report.

The company, the latest report of intellectual understanding for October notes that the increase in the level of pollution of spam that are either in the free blog sites and Mobileme as designed to exploit high levels of confidence that gives content sites in the brand.

The mechanism underlying the current col lapse of traditional defense systems, such as CAPTCHA (completely automated public Turing test to tell Computers and Humans Apart), a variety that have been broken in recent months.

Indeed, the vulnerability of the CAPTCHA has become one of the topics up in 2008, which began with the opening of cracks in Yahoo as the hunt system in January, continuing with a robot of assault Microsoft equivalent, which culminated in the use Gmail to create fake user accounts in March.

The report paints a cascading effect, which has allowed CAPTCHA hole to allow criminals to create a large number of fake blogs and content, which are then used to feed fake profiles on social networking systems. The messages and requests for these domains are an easy way around the reputation-based anti-spam technology, as they are from trusted sites is not as aggressive filtered by the software.

“With the exploitation of Google Blogspot and MobileMe, we are once again common to see two converge spamming practices - CAPTCHA breaking techniques and the exploitation of free hosted services,” said MessageLabs’ Mark Sunne.

“The spammers are now taking a step further and experiment with the capabilities of social networking sites such as Bebo. As a result, users of social networking sites are receiving more applications from friends fake profiles to connect to. ”

In a more optimistic note, the report cites a parallel side, but less frequently comments on spam trends, the authors of its success is chased by police forces around the world.

Earlier this year, the alleged professional http://www.techworld.com/security/news/index.cfm?newsid=101498

MySpace spammers in the U.S. are on the receiving side of a world record fine of $ 234 million, while more recently a http://www.techworld.com/security/news/index.cfm?newsid=105747

notorious international operation based in New Zealand, Australia and the United States face persecution by the authorities in these countries.

Earlier this month, according to MessageLabs to $ 695 million (£ 421 million) buy-out by Symantec.

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