China has stringent laws for data surveillance. VPNs are banned in China and are considered a crime by China's Ministry of Industry and Information Technology (MIIT). However, several VPNs can work well. One of them is ExpressVPN. Firstly, it encrypts your data completely, and its obfuscated server removes traces of using any VPN so that no one will know whether you are committing this crime. Nord, on the other hand, does not work in China. If you try to use it, it will show an error message, or you first need to connect with customer support to reconfigure settings, then only you can use it.