Do I have to deduct the phone bill to receive the verification code?

The mobile phone will deduct the phone bill only after receiving the verification code and sending the SMS verification code.

The verification code pushed by 106 SMS platform is free for mobile phone owners, and mainly charges enterprises with verification code interface. Generally, according to the number of prepaid packages, how much is deducted, and the fee will be renewed when there is no number.

Verification code is a security verification mechanism, which is used to confirm the identity and behavior of users. You usually need to enter SMS or voice verification code. The cost of sending the verification code shall be borne by the service provider, and no cost will be incurred.

Mobile phone verification code is the most effective verification code system by sending verification code to mobile phone. Large websites, especially shopping websites, provide SMS verification code function, which can accurately and safely ensure the safety of shopping and verify the correctness of users.

Some authentication code providers provide SMS authentication code service. Each website sends a request to the provider's server through the interface, and the server sends random numbers or letters to the mobile phone, and the provider's server verifies the authentication code uniformly.

The verification code of most websites needs to click the fill-in box, and then the verification code picture will automatically pop up. Because the verification code is generated randomly, there is a great chance that there will be an unrecognizable verification code picture.

Therefore, it should be noted that general websites will have corresponding tips, such as "I can't see clearly, change it" and so on. If there is no prompt, click the current verification code picture directly to complete the replacement of verification code.

Introduction of video verification code:

Video captcha is a rookie in captcha. The verification code composed of random numbers, letters and Chinese in video verification code is dynamically embedded in videos in MP4, flv and other formats, which increases the difficulty of cracking. Captcha video changes dynamically and responds randomly, which can effectively prevent dictionary attacks, exhaustive attacks and other attacks.

The combination of letters and numbers, the shape and size of fonts, the speed, the dynamic change of display effect and trajectory in video increase the difficulty of malicious screen capture. Security is much higher than ordinary verification code. This form of verification code will not make users feel bored. Because it improves the difficulty of machine identification, it can reduce the difficulty of user identification and make it easier for users to identify.

However, due to the need for high technical support, this verification code has not been popularized. There are several companies in the world that provide this service, including the impression code service platform of China company Qingdao Impression Information Technology Co., Ltd. But I believe that with the improvement of technical level, video verification code will be popularized and the security of the website will be effectively improved.