To ensure that our technologies are resilient against threats and attacks, we've tasked Cure53 to perform a security audit of Tor Browser and other tools related to censorship circumvention. You can view the full report and more about their findings in this blog post.
Today, we are officially introducing a proof-of-work (PoW) defense for onion services designed to prioritize verified network traffic as a deterrent against denial of service (DoS) attacks with the release of Tor 0.4.8.
We have conducted an assessment of our strategy to make Tor services more broadly available in the Global South to better understand our progress and potential for improvement.