Blue Security came with an innovative solution to target spammers - by spamming them with opt-out requests. It worked surprisingly well and spammer's were naturally not happy.

Unfortunately the company has decided to call it quits following the series of attacks it faced a couple weeks ago. A spammer figured out Blue Security's "opt-out" list and then proceeded to bombard them with even more spam. Immediately after this, a massive denial of service attack was directed at Blue Security's servers, which ended up taking out many other sites, including major blog provider Six Apart (which hosted a Blue Security blog).

It is an unfortunate event for internet users in general.

via TechDirt