Following Russia’s strict anti-terrorism laws which was made in 2016, every messaging services required to provide authorities with the ability to decrypt user messages. Telegram refused to do that saying
“At Telegram, we have the luxury of not caring about revenue streams or ad sales. Privacy is not for sale, and human rights should not be compromised out of fear or greed.”
Telegram for months has been fighting for its stance in the court with Russia’s telecommunications watchdog Roskomnadzor. The court ruled that telegram should be blocked immediately, and the ban will be in place until Telegram provides decryption keys to the Russia’s Federal Security Service (FSB).