I received a short message verification code for no reason today. Why?

I can't get your personal information, so I can't analyze it in detail. The following possibilities can be considered: 1. This verification code message was received by your mobile phone number when you registered some applications or services before, but you may not remember it. This may be a kind of fraud. If you haven't registered or operated any Internet service recently, and there is a suspicious link in the SMS, please don't open the link on your computer or mobile phone. 3. If you think this is a non-fraudulent short message, it may be because the verification code is sent incorrectly or the system is out of order. However, this situation is usually not very common. In any case, please be vigilant and handle it carefully. If you receive any suspicious information, please pay attention to protect your personal information.