The Tor network is comprised of thousands of volunteer-run relays around the world, and millions of people rely on it for privacy and freedom online everyday. To monitor the Tor network's performance, detect attacks on it, and better distribute load across the network, we employ what we call Tor bandwidth scanners.
OnionShare is an open source tool for securely and anonymously sending and receiving files using Tor onion services. OnionShare 2 adds anonymous dropboxes, supports new Tor addresses, and is translated into a dozen new languages.
Around midnight on August 4th we were notified by a few people that a large number of hidden service addresses have disappeared from the Tor Network.