From the article:<p>Brave doesn’t follow the sneaky practices of other big tech search engines. The Web Discovery Project is opt-in, and the data collected under the Web Discovery Project has specific protections to ensure anonymity. In addition to these protections, the Web Discovery Project adheres to the principle of “unlinkability.” This means we do not link data to you, your browser, or your device. Brave Search has no concept of a user or session ID, which prevents record linkability. Further, the Web Discovery Project includes multiple protections to prevent websites or searches specific to you, or that include personal or sensitive information, from inclusion.<p>What keywords are being searched most often? What websites do those keywords lead to? How are those websites interacted with? These kinds of directional questions help Brave Search navigate the world of available web pages, and separate signal from noise. And this, in turn, helps us understand the parts of the web worth indexing for users.