Steam's message boards were compromised Sunday, and it's been investigating since.

It’s one thing when a message board gets compromised, it’s quite another when it’s one of the most popular services amongst PC users.

An unidentified user or group of users gained access to the Steam message boards on Sunday, and subsequently “obtained access to a Steam database in addition to the forums,” the company said today.

The statement, signed by founder Gabe Newell, claims the company has found no evidence of credit card fraud, but recommends users to monitor their financial accounts closely. Even if you didn’t have an account on the Steam message boards, Valve recommends changing your password.

“I am truly sorry this happened, and I apologize for the inconvenience,” said Newell.”

Users accessed “a Steam database in addition to the forums” that had user names, hashed and salted passwords, game purchases, email addresses, billing addresses, and encrypted credit card information.There is currently no evidence the credit card information has been decrypted, and Valve is “still investigating.”

Only a few message board accounts were reportedly compromised, and they “do not know of any compromised Steam accounts” at this time.

Basically, change your password. If Valve issues further updates, I’ll let you know.