What right does China Telecom have to stop the second certification?

For the safety of your number, please turn it off temporarily.

Mobile phone cards may have security risks and may be illegally used. According to regulations, secondary authentication is required.

The General Administration requires to prevent others from picking up cards after losing their mobile phones. So change your mobile phone and the card will stop once. If you stop, you need to carry out the second real-name authentication according to the SMS reminder.