Friday, August 7, 2009
Twitter, the most popular micro-blogging site, was out of service much of the day on 06th August 2009 as it worked to defend itself against a web attack, but service appeared to have been restored by late evening.
Many of Twitter's 45 million legitimate users were unable to use the service for hours. Analysts characterized the attack as Denial-of-Service(DoS) attack, in which a hacker overwhelm a website by sending it a deluge of junk requests, and one suggested that the attack might have originated from Russia or Georgia as an extension of the conflict between them.
Facebook and Google also fended off similar attacks on the same day.