GoDaddy is rejecting the claims that they were hacked in a statement released today. The statement claims that "the service outage was not caused by external influences. It was not a "hack" and it was not a denial of service attack (DDoS). We have determined the service outage was due to a series of internal network events that corrupted router data tables."

This claim refutes yesterday's claim by an Anonymous member that he was responsible for bringing GoDaddy down. The outage lasted for six hours, by GoDaddy's account, lasting from 10am PDT to around 4pm PDT. They have reiterated that since it wasn't a hack, at no time was any customer data at risk. They then proceed to admit they let customers down and apologize for doing so:
Throughout our history, we have provided 99.999% uptime in our DNS infrastructure. This is the level our customers expect from us and the level we expect of ourselves. We have let our customers down and we know it.
We take our business and our customers' businesses very seriously. We apologize to our customers for these events and thank them for their patience.
I'm sure this won't be the last we hear about this. AnonymousOwn3r has been boasting about his successes and says that he can take down Google too. For right now, it's more likely that the GoDaddy account of events is accurate and that this Anonymous guy is just taking credit for GoDaddy's freak incident.