The Gears Of War developer has now brought its sites back online. It took them down in order to reset passwords. A email from the firm sent out yesterday to it community reads:
Our Epic Games web sites and forums were recently hacked. After some downtime, they're back up and running now.
The hackers may have obtained the email addresses and encrypted passwords of forum users. Plaintext passwords weren't revealed, but it's possible that those passwords could be obtained by a brute-force attack on the encrypted passwords. Therefore, we have reset all passwords. Your new password at the bottom of this message.
The Unreal Developer Network (UDN) hasn't been compromised. Thankfully, none of our web sites ask for, or store, credit card information or other financial data.
We're sorry for the inconvenience, and appreciate everyone's patience as we wrestle our servers back under control.
Founder, Epic Games Inc