July 2, 2003
Fooling Bayes
I was curious why an email the subject line of which is “Watch these girls flash their racks for each other” got through Popfile, my Bayesian spam filter. Popfile is remarkably accurate at sniffing out the spammers. In this case, though, the message consists of a small graphic (“sg-titties-graphic”) — with my email address encoded in the link so if I click on it, they know I’m alive and horny — and some invisible text that says:
beefer segregates intrust yardsticks strangles RzneXfrysRzneXrivqrag.pbzRzneX ethel myrtle cruxes ceremonies disbands cooling computable hotly autopilots interrogating commencements halters clarified incidence cavern
I’m assuming that those words are rare in pornospam and thus successfully fooled PopFile. It’d be nice if PopFile recognized invisible text as invisible…