GoDaddy: No customer data compromised 11 (UPI) -- GoDaddy said no customer data were compromised by a major outage that brought down the U.S. Web hosting giant and its 10.5 million customers for several hours. "Most customer hosted sites back online," GoDaddy said on Twitter about 8:30 p.m. We're working out the last few kinks for our site & control centers. No customer data compromised. The outage, claimed to have been caused by a person professing to support the Anonymous rogue hacker confederation, started about 1:25 p.m. Some Web sites were intermittently shut down. GoDaddy's own Web site, which was also brought down by the attack, was back up and running early Tuesday. The person claiming to support Anonymous said all GoDaddy servers were knocked out with what is known as a distributed denial of service attack, or DDoS attack. With this, a targeted Web site or network resource becomes so overloaded with communications requests that it can't respond to legitimate traffic and eventually collapses due to server overload. The person claiming responsibility said he created the chaos alone. A Twitter account often associated with Anonymous, @AnonyOps, distanced the group from Monday's attack. "He's either a newbie to activism and cutting his teeth by doing this, which is misguided, or he's trying to give Anons a bad reputation," a Twitter message said. The professed "hactivist," who used the Twitter account @AnonymousOwn3r, suggested he might try again. "I will keep the attack to godaddy soon u guys can acess," he wrote. GoDaddy hosts and provides services and software to hundreds of thousands of online businesses, many of them small to midsize operations that rely on GoDaddy for their lifeblood. Chad Weinman, chief executive officer of RunningShoes.com, told United Press International late Monday night his company lost as much as $50,000, not counting salaries and other expenses, during the outage. He called the interruption "devastating" and said his parent company, which operates 10 online retail sites, was thinking about leaving GoDaddy. "It feels to me that a company of that size, they'd have contingency plans, better security," Weinman told UPI. We're just really disappointed with what we thought was a major, able, safe Internet services provider. The 8-year-old St. Louis company, with nearly 50 employees, couldn't even sell over the phone "because our call center relies on the Web" to complete orders, he said. The whole business is Web-centric. We certainly hope the worst was behind us.