Summary

Secure Computing has released a new white paper entitled “Image Spam: The Latest Attack on the Enterprise Inbox”.

Details

“Spammers have long attempted to bypass anti-spam software by incorporating their sales pitch into an image, rather than sending it as plain text. When they first adopted this practice, they were able to evade simple content recognition tools.

As image spamming grew in popularity, anti-spam vendors developed signatures designed to detect specific image spam messages. In doing so, the anti-spam software was able to reference these signatures and reject identical or nearly identical messages. However, spammers have now fired a new barrage of image spam using randomized images that appear identical to the human eye, yet appear to be entirely unique to most anti-spam software. Many of the changes to the images contained within spam messages are so subtle that they require a pixel-by-pixel examination of the image in order to detect the differences.” [source]

Post Related Link

Secure Computing White Paper: Image Spam

About Secure Computing

Secure Computing (Nasdaq: SCUR), a leading provider of enterprise gateway security, delivers a comprehensive set of solutions that help customers protect their critical Web, email and network assets. Over half the Fortune 50 and Fortune 500 are part of our more than 19,000 global customers in 106 countries, supported by a worldwide network of more than 1,900 partners. The company is headquartered in San Jose, Calif., and has offices worldwide.

 

 

 

 

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