What is the validity period of the WeChat QR code on the business card?

The conclusion is that the WeChat personal QR code on the business card is actually permanently valid, because it is based on a static QR code design, its information will not be updated, and the content can be obtained by scanning WeChat at any time . However, this does not mean that QR codes are without risks. The wide application of QR code technology, such as anti-counterfeiting, anti-counterfeiting and shopping, makes it carry a large amount of information and has powerful functions, but it has also become a carrier of mobile phone viruses and phishing websites.

When using QR codes, you need to pay attention to the authoritativeness of their sources. QR codes from legitimate media or well-known merchants are generally safer, while QR codes published by unknown websites may be risky. In order to protect yourself, it is recommended to use a code scanning tool with security monitoring function, which can detect suspicious links in time during scanning. In addition, even if you install software through a QR code, you should check it with anti-virus software first to ensure it is safe before using it.

In general, the QR code on WeChat business cards is effective for a long time, but while enjoying its convenience, it is crucial to ensure safety. Please treat QR codes with caution to protect personal information and device security.