As Twitter struggled to return to normal Wednesday evening, a trickle of details suggested that the outage that left 30 million users unable to use the micro-blogging service for several hours - at least in part - may have been the result of a spam campaign that targeted a single user who vocally supports the Republic of Georgia.
According to Bill Woodcock, research director at the non-profit Packet Clearing House, the torrent of traffic that brought the site to its knees wasn't the result of a traditional DDoS, or distributed denial of service attack, but rather people who clicked on a link in spam messages that referenced a well-known blogger called Cyxymu.
As spam goes, the emails looked benign enough. One of them carried the subject "Visit my blog" and contained the words "thanks for looking at my blog" in the body. They contained respective links to Cyxymu's accounts on Twitter, Facebook, LiveJournal and YouTube, all of which also reported receiving abnormal amounts of traffic on Thursday.
ITU Global Cybersecurity Agenda