Why I hate Challenge-Response

Now that I have been officially accepted into the “Security Bloggers Group” on LinkedIn (very cool!), I realize it’s time I shared some of my opinions on things rather than simply reporting on this or that malware outbreak (although some of you have indicated to me that the objective reporting of news in the messaging [...]

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 [...]