The person who sent this text message is using your mobile phone. You can send short messages to perform your customized remote control function. The short message format is as follows: TYRC anti-thef

The person who sent this text message is using your mobile phone. You can send short messages to perform your customized remote control function. The short message format is as follows: TYRC anti-theft This is the mobile phone's anti-theft system started, that is, the phone number set in the mobile phone's anti-theft system is yours, that is to say, the anti-theft system of that mobile phone found that the SIM card of the original mobile phone was replaced, so it started automatically and sent a text message to the original set number to inform that the SIM card was replaced or the mobile phone was stolen.

Of course, it is also possible that a liar lied to you.