Image Spam on the Rise
(Image used under: Creative Commons 2.0 [SRC])
I haven't talked about this before, but it's a problem that's been around a while. A lot of spammers will send full images containing their message instead of HTML or text because a spam filter can't recognize what's in a picture. Now that spammers have been seeing the results of advanced spam filters, they are moving more and more to image spam.
From the article I linked to, this is the most important piece of advice:
Disable graphics in e-mails you receive. Most e-mail services such as Microsoft Outlook 2007 and Mozilla Thunderbird automatically prevent graphics from showing in e-mails you receive unless you click on them or enable the graphics yourself. While this can slow things down a bit, it also reduces the chances that you will be caught clicking on a piece of image spam. You can also configure your e-mail account to only receive plain text, blocking rich text and graphics altogether.The key is that if the image loads at all, even if you don't click it, the spammer can know you opened their e-mail which will encourage more spam.
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