Why did you suddenly receive a short message from Netease?

1. Your mobile phone number may have been used by others before. That person forgot to untie it and used it when logging in Netease, but he couldn't get the verification code.

2. It may also be that someone wants to register an account, but mistakenly entered it as your mobile phone number, and their mobile phone has repeatedly clicked to get the verification code, so there will be multiple verification codes. 3. If you don't give up SMS for a long time, someone may use the vulnerability of verification code to harass maliciously, but it doesn't rule out that it is a server error.