Spammers fail the PDF test
Spam e-mail using PDF file attachments have all but disappeared with Sophos claiming the rapid drop is because they have failed.
According to Sophos research, levels of PDF spam have dropped from a high of close to 30 percent of all spam earlier this month to virtually zero.
Sophos technology consultant, Graham Cluley, said there can only be one reason for the drop, it isn't working.
"Spammers wouldn't turn away from PDF spam if it was an effective way to fill their pockets with cash and direct consumers to their Web sites, dodgy goods or dodgy investment opportunities," he said.
