If you've recently received any one-time password text messages that you did not request, ignore them and change your password again. In the coming weeks, keep an eye out for any phishing attempts disguised as game product offers or other Steam-related content.

On May 14, 2025, reports were circulating that Valve had suffered a security breach on its platform Steam. Valve has released a statement refuting the claim, stating that it was actually a leak, and that it is currently investigating. The full statement follows.

Valve has responded to reports of a major data breach in which Underdark.ai, a cyber threat intelligent service, highlighted a dark web forum post by a hacker claiming to be in possession of 89 million Steam user records.