According to a recent report, the country upgraded the Great Firewall technology to detect and block the NoiseSocket protocol that WhatsApp uses to send messages.
Authorities did not give official reasons but it could be related to what WhatsApp supports the encrypted conversation that China's monitoring tool cannot break.
Also this week, South Korea said it was considering banning Tumblr after the company refused to remove pornography from its website.
According to one report, Tumblr received 22,468 requests from the Korean government from February to June related to pornography on blogs but declined all, saying that they operate in the United States, without pillars. stay in Korea and not follow Korean law.
'We consider blocking Tumblr if the problem becomes serious,' said Vice President KCSC (South Korea's Communications Standards Committee). He also said that Tumblr is famous for its loose policy and that is one reason why it is full of adult content. KCSC said about 10% of content on Tumblr is pure porn.