Using an anonymous browser such as Tor Browser can help users access blocked websites to a certain extent while increasing privacy protection. However, whether you can remain completely undetected depends on a variety of factors: 1. **Network monitoring**: Network monitoring technology in some areas is very advanced and may detect and identify Tor traffic or other anonymous browsing traffic. If the local government or network operator adopts deep packet inspection (DPI) technology, anonymous browsing may be blocked. 2. **Usage**: Even if you use an anonymous browser, your behavior may still be monitored. For example, the act of visiting a blocked website itself may arouse suspicion. 3. **Security settings**: It is crucial to ensure that you use the browser's security and privacy settings, and try to avoid downloading plugins or visiting websites that may reveal your identity. 4. **Legal risks**: In some countries, accessing blocked websites may violate local laws, and using an anonymous tool does not completely protect users from legal consequences. In summary, although anonymous browsers can help users access blocked websites and increase privacy protection, absolute privacy and undetectability are not guaranteed. When using such tools, please be cautious and understand the relevant laws and risks.