Update: Krebs has now written about his experience in some detail. The same people responsible for the DDoS attack carried out yesterday on Krebs' site launched a similar attack on Ars Technica this morning.
Brian Krebs has always been a trailblazer among security reporters. His exposés completely shut down a California hosting service that coddled spammers and child pornographers and severely disrupted an organized crime syndicate known as Russian Business Network. More recently, his investigative journalism has followed the money to the people who sell malware exploit kits, illicitly procured credit reports, and denial-of-service services in underground forums.