Pastebin.com on Thursday found itself hit by a distributed denial-of-service (DDoS) attack. The site was previously taken offline for a portion of the day on Tuesday, though no motives or culprits for that attack have been named yet. Over the last year Pastebin has proved to be the favored drop-off spot for hacktivist groups like Anonymous and Lulzsec for dumping long diatribes of text detailing accounts of hacks, exploits and other information. As of late afternoon Eastern time on Thursday, the site was still offline.
Source: https://threatpost.com/pastebin-downed-second-ddos-attack-week-010512/76065/