Valve says the leak features phone numbers that previously received a one-time passcode, but they're not associated with a Steam account, password, or other personal data.

A leak of old text messages sent to Steam customers with one-time codes for logins was “not a breach of Steam systems,” Valve says in a post published Wednesday.

Valve has responded to reports of a massive Steam data breach, insisting that Steam data was not leaked. Reports of the leak originated from a LinkedIn post by Underdark.ai, which claimed that Steam data was being sold on the Dark Web. Valve revealed that the leak consisted of older texts and was not actionable as a threat to Steam users.