Telegram, one of the most popular encrypted messaging app, briefly went offline yesterday after a powerful distributed denial-of-service (DDoS) attack hit its servers. The attack was mainly coming from the IP addresses located in China, suggesting the Chinese government could be behind it to sabotage Hong Kong protesters. Many people in Hong Kong are currently using Telegram’s encrypted messaging service to communicate without being spied on, organize the protest, and alert each other about activities on the ground. It’s not the first time when the Telegram service was taken down using a DDoS attack during the political unrest.
Source: https://thehackernews.com/2019/06/telegram-ddos-attack.html