Steam owner Valve shot down reports that it's linked to cloud software company Twilio. We asked Valve to confirm whether a breach had

An apparent leak has exposed the phone numbers and texts of millions of Steam accounts, but account security wasn't compromises.

Valve has confirmed that your Steam password, or other private information, did not leak. On top of that, Valve stated that the leak came from a different source than Steam, and does not provide info linked to your Steam account in any way you need to worry about.