Wednesday, July 4, 2007

PDFs as spam

Could that PDF file attachment be malicious? Maybe. More and more PDF files are coming in as <A HREF="http://jonathanblum.com/blumsday/?p=1778">attachments on unsolicited junk mail and spam.</A> PDF is the portable document format created by Adobe a zillion years ago. And it has become the defacto standard for moving virtual versions of documents around the Web. PDF files offer a locked or nearly locked version of the original and are traditionally safe to use.

Usually dubious attachments come in as DOC formats or other more open standards. And over the years there has been controversy about how vulnerable PDFs are.

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