Valve has issued an official statement regarding the recent Steam-related data leak. The company confirmed that old SMS messages containing one-time codes were exposed, but emphasized that the Steam platform was not breached and user accounts remain secure.
According to Valve, the leak involved text messages previously sent to Steam users that included one-time codes valid for no more than 15 minutes. The leak also included the phone numbers these messages were sent to. However, the company stressed that this information alone is not enough to access user accounts or reveal any personal data.
“We have reviewed the leaked data and determined that Steam systems were not compromised,” Valve stated in its official blog. The company explained that SMS messages are transmitted in plain text and pass through various mobile network nodes, making it difficult to identify the exact source of the leak.
Valve added that there is no need to change your password or phone number, as the leaked messages do not pose a risk. Additionally, any changes to critical account information are always confirmed via email or the Steam Mobile Authenticator.
The company concluded by reminding users to follow basic security practices. It recommended enabling the Steam Mobile Authenticator and regularly reviewing security settings in the “Security and Devices” section of the Steam launcher.

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