Facebook is available through Tor since 2014. Since then, the people who access Facebook over the secured network has increased.
In June 2015, there were about 525,000 people accessing Facebook through Tor. This number has increased roughly linearly each year.
In a Facebook note, software engineer Alec Muffett said the number of Facebook over Tor users over an average 30-day period has about doubled in less than a year. On April 2016, Facebook is seeing one million monthly Tor users accessing the social network for the first time.
"This growth is a reflection of the choices that people make to use Facebook over Tor, and the value that it provides them," Muffett wrote. "We hope they will continue to provide feedback and help us keep improving."
About how those Tor users access Facebook in the past month is either through its .onion domain for Tor browsers or by routing its Android app via Orbot.
Tor is often associated with internet activity that focuses on anonymity where users use it to have more privacy, security and safety from either hackers or the government. This is because Tor users may leave no digital footprints.
Tor as it's widely known as the onion router network, which allows anonymous web browsing by sending data through multiple encrypted steps, rather than making direct connections, which protects the identity of its users.
This separate dark web is often used by privacy activists, hackers, activists, and journalists to securely communicate.
