This article originally appeared on ABACUS Police in China arrested a man for selling VPN software that helps circumvent the country’s stringent online censorship system. VPNs, or Virtual Private Networks, are the most common tools used in China to hop over the Great Firewall and access foreign websites and apps including Facebook, Google and news sites. The story of China’s Great Firewall, the world’s most sophisticated censorship system “People use it for ordinary things, to watch videos and read the news,” said the man, known under the pseudonym Gao, to local media . He added that he didn’t think users were doing anything illegal. The 29-year-old graduate student has confessed, but is still awaiting his sentence in Jiangsu province. According to the report, Gao made 11 million yuan (US$1.6 million) from selling the service since 2016. China uses an intricate system of online censorship known as the Great Firewall to block foreign websites. The country toughened up on tools to avoid censorship in 2017, with one VPN seller sentenced to a five-year prison term amid the crackdown. The Ministry of Industry and Information Technology then stipulated that VPNs can only be offered with approval from relevant departments. Soon after, Apple removed VPN apps from its App Store on the mainland. Arrests for offering VPN services in China are not uncommon. Just last week, another man was arrested in Shenzhen for the same offense, according to Southern Metropolis Daily, while another arrest took place in October last year in Hangzhou. The same year in May, police in Yixing City even said they made an arrest after spotting a foreign short video app installed on a citizen’s mobile phone. Purchase the China AI Report 2020 brought to you by SCMP Research and enjoy a 20% discount (original price US$400). This 60-page all new intelligence report gives you first-hand insights and analysis into the latest industry developments and intelligence about China AI. Get exclusive access to our webinars for continuous learning, and interact with China AI executives in live Q&A. Offer valid until 31 March 2020.