Strange sms with Apple ID codes
Good afternoon! I would be very grateful for your help ...
Just last week I bought a new iPhone 11 pro max and registered a new Apple account. I configured two-factor authentication. But yesterday I started receiving messages from Apple with my Apple ID code. At the same time, I did not sign in to anything and did not change passwords. Messages came while I was sleeping. I do not know what to do. I'm afraid someone is trying to hack me. Please, tell me what can be done about this? (PS I’ve checked the devices linked to the my Apple account, there is only my phone)
iPhone 11 Pro Max, iOS 14