Why does the mobile phone receive the Jiehui network verification code?

If it was sent at night and you didn't do anything, it may be a harassing message, or it may be sent directly by mistake.

Function:

Although it is a bit troublesome to log in, this function is still necessary and important for the password security of netizens. However, we still remind everyone to protect their passwords and try to use passwords with more than 6 digits, including numbers, letters and symbols. Don't use a simple password such as 1234 or a password that is the same as or similar to the user name, so as to avoid the account being stolen and bring yourself unnecessary trouble.

(1) verification code is generally used to prevent batch registration, which is difficult for people to see, let alone machines. Second, if Baidu Post Bar doesn't log in and post, it is likely to need to enter a verification code to prevent large-scale anonymous replies. In order to prevent users from being automatically registered, logged in and poured water by robots, many websites adopt verification code technology.

The so-called verification code is to generate a picture with a series of randomly generated numbers or symbols, and add some disturbing pixels to the picture (to prevent OCR). Users can identify the verification code information with naked eyes, enter the form and submit it to the website for verification. Only after the verification is successful can a function be used.

(2) General user ID registration places and major forums should enter verification codes.