Tag Archives: Spam filtering

From the Ashes of Blue Frog

The Blue Frog may be no more,  but the vigilantes are. Seems that despite the death of Blue Security in the face of a spammer’s wrath, the service has built an appetite for fighting back. Eric B. Parizo of SearchSecurity.com reports on a new independent group called Okopipi who intend “to pick up where Blue… Read More »

Spammers Get Authenticated

Until now, most spammers sent their stuff through open relays — Internet-connected computers that were either unprotected, or else had been compromised by viruses or trojans into sending the spam without the owner being aware. But that is changing, says AppRiver, and it has big implications for how spammers work and may render useless today’s… Read More »

The Blue Frog vs PharmaMaster

I’ve been trying to make some sense of this recent drama involving Blue Security, an anti-spam registry that effectively tries to deter uncooperative spammers by overwhelming their servers, and recent outages at TypePad and LiveJournal apparently caused by a revenge attack by spammers on Blue Security. (Here’s some more information on Blue Security and the… Read More »

How to Make More Use of the Vicar

In last week’s WSJ column (subscription only, I’m afraid) I wrote about how Bayesian Filters — derived from the theories of an 18th century vicar called Thomas Bayes and used to filter out spam — could also be used to sift through other kinds of data. Here’s a preliminary list of some of the uses… Read More »

Where Did That Email Come From?

An interesting new tool from the guys behind the controversial DidTheyReadIt?: LocationMail. (For some posts on DidTheyReadIt, check out here, here, here and here.) LocationMail tells you where e-mail was sent from. It uses the most accurate data in the world to analyze your e-mail, trace it, and look up where the sender was when the message… Read More »