Isaac Mao just twittered that TOR, one of the most used proxies in China to avoid the internet censorship has now been blocked itself. That happens only a few days after reports said that also Anonymouse, one of the other more popular proxies now had been blocked.
That means a diversion from the old policy where proxies were mostly not blocked and the internet censorship was a kind of first line defense for newcomers. Most people who have to deal with information, like academics and journalists, were at their workplace in China first taught how to use proxies.
Over the past year most ‘blocks’ of foreign websites had disappeared and made way for more sophisticated filtering techniques. Blocking well-known proxies seems to mean the relative tightening of the censorship at a time when China had promised more openness at the internet for its foreign guests.