Description: Invisibility, in the context of online privacy, refers to the state of being unseen or unnoticed while browsing the internet or using digital systems designed for privacy. Various operating systems and software applications aim to provide anonymity and security to their users. By using such systems, user data and activity remain hidden, allowing for a browsing experience that leaves no traces on the device used. This invisibility is crucial for those seeking to protect their identity online, whether for personal security reasons, activism, or the desire to maintain privacy. Such systems often employ technologies like the Tor network, which encrypts and redirects internet traffic through multiple nodes, making it difficult to identify the user. Additionally, many privacy-focused tools do not store information on the device, meaning that each session starts anew, free of previous data. In this context, invisibility not only refers to the lack of online visibility but also to protection against surveillance and tracking, making it a valuable tool in a world where digital privacy is increasingly threatened.