The chief executive of Telegram, a popular encrypted messaging app, said on June 12 the messaging service experienced a "state actor-sized" cyberattack and pointed to China as its likely country of origin.
The service was hit by a "powerful DDoS attack" originating from IP addresses mostly inside China, Pavel Durov, Telegram's CEO, said in a tweet.
The attack coincided with protests in Hong Kong, he added.
IP addresses coming mostly from China. Historically, all state actor-sized DDoS (200-400 Gb/s of junk) we experienced coincided in time with protests in Hong Kong (coordinated on @telegram). This case was not an exception.— Pavel Durov (@durov) June 12, 2019
Distributed Denial of Service (DDoS) attacks involve sending large numbers of requests in a targeted attack, causing partial or full service interruptions.
Hundreds of thousands of protestors have marched in Hong Kong this week in opposition to a controversial law that would allow people in the city to be extradited to China.
Chinese state media have sharply condemned the protests, which they say is motivated by outside forces and undermines social stability in Hong Kong.
The Cyberspace Administration of China (CAC), which oversees the country's cyber policy, did not respond immediately to a faxed request for comment.
Telegram and other encrypted messaging apps are popular tools for protesters globally, who use them to coordinate without tipping off authorities.
Durov added that historical attacks of the same size had coincided with protests in Hong Kong, adding, "This case was not an exception."
Other apps have faced blocks in China as well during political movements in Hong Kong. In 2014, at the height of the city's Umbrella Movement, Beijing cut access to photo-sharing app Instagram inside the mainland.
Chinese officials have previously denied allegations of cyberattacks, pointing out that China is a frequently a victim of outside attacks. – Reuters
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