Brave browser, which emphasizes privacy and security, has been leaking data for months, according to security researchers. On Friday, Reddit user ” py4YQFdYkKhBK690mZql” posted on a forum that Brave’s Tor mode, introduced in 2018, was sending requests for .onion domains to DNS resolvers, rather than private Tor nodes. This means that the.onion sites people searched for, with the understanding those searches would be private, were not. In fact, they could be observed by centralized internet service providers (ISPs).