vbulletin.com & .org sites down

Does anybody have any news on the vbulletin.com and .org sites being down?

Don't worry. They are back again now.

I've heard they get a lot of DoS attacks, it's a real plague btw I know all about it.

They were getting hit hard a couple years ago then the person responsible sent an email to Kier saying they would stop.

Look through the announcements forum you'll see a thread about it.
Maybe it started again.