Flash in the Spam

July 28th, 2008 by Rebecca Herson | Category: Spam Favorites | Leave a comment »

OK the title is a lousy play on words, but the new spam tactic with hyperlinks to Flash files is actually pretty neat.  You most likely know by now that spammers will look for any way to bypass content-based anti-spam filters. And they tried a new trick today: sending spam messages whose hyperlink call to [...]

Photo sharing site spam

September 4th, 2007 by Rebecca Herson | Category: Spam Favorites | 1 Comment »

A new trick has emerged, with a 419 scam (those guys who try to woo you with free money, but really end up stealing your money) promoted through a photo sharing site - in this case Kodak EasyShare Gallery. It’s an easy way for these scammers to send email without being blocked, since blocking all [...]

Massive PDF Spam Outbreak

July 11th, 2007 by Rebecca Herson | Category: Data & Research | Leave a comment »

The Commtouch Detection Center has just reported that PDF spam has been spiking over the last 24 hours, making up 10-15% of all spam messages. Given the fact that these messages are nearly 4x bigger than ’standard’ spam messages, this increases overall global spam traffic by 30-40%.
The new technique of sending spam messages as a [...]

Google blocking google as spam?

February 27th, 2007 by Rebecca Herson | Category: Email Security | Leave a comment »

It’s not nice to talk about the performance of other anti-spam engines, but this false positive is just too cute to ignore. One our engineers pointed out to me how ironic it was that Gmail had blocked two of his google news alerts as spam! Google being Google, I’m sure it’s just a small, temporary [...]

the challenges of Challenge Response

January 24th, 2007 by Yael | Category: Email Security | 1 Comment »

We all know there are many different technologies to fight spam. the other day I came across a company who develops and uses Challenge Response in its most traditional way. I sent a fully legitimate email (I do not consider myself as a spammer) to one of the company’s employees, and in return got an [...]

Why do fake newsletters work?

January 21st, 2007 by Nikki | Category: Spam Favorites | Leave a comment »

It seems the fake newsletter our spam detection team noticed last week is officially the latest spam tactic. Richi Jennings wrote about why this tactic may be working on his blog:

“The idea is to take advantage of people’s abhorrence of false positives. Spam filters will be carefully programmed, trained, or whitelisted to let legitimate newsletters [...]