*Source: Permit/Deny Blog eWeek (
http://blogs.eweek.com/permit_deny/c...th_spam.html)*
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MX Logic (
http://www.mxlogic.com/) has reported a 25 percent increase in spam volume, in particular spam that uses text in PDF attachments. According to Sam Masiello, director of threat research for MX Logic, tainted PDF documents are the evolutionary next step for image-based spam. The reason: The converters needed to open the PDF document in order to use OCR technology to scan the document and check for spam aren't yet widely used in anti-spam tools.
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