Symantec: Image spam climbs
Improvements in blocking and filtering methods have driven spammers to use new techniques to get into inboxes. Some 38 percent of the spam sent in February used images in messages, which makes it more difficult for security software. Messages appear to be more unique, allowing them to bypass a filter.
Spammers also are using text slanted at upward or downward angles. The method hampers optical character recognition technology, which tries to read the text within images, Symantec said. Symantec: Image spam climbs | InfoWorld | News | 2007-03-09 | By Jeremy Kirk, IDG News Service
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