Telegram, the messaging app, would address concerns of its content moderation and remove some features that had been abused for illegal activity, Telegram CEO Pavel Durov said on Friday.

Pavel Durov, the billionaire founder and CEO of the instant messaging app Telegram, was reportedly arrested on the evening of August 24 at Bourget Airport near Paris, according to French media outlets TF1 TV and BFM TV, which cited unnamed sources. Here are some things you should know about Pavel Durov and Telegram.

Pavel Durov, the billionaire founder and CEO of the Telegram messaging app, was reportedly arrested on Saturday evening at Bourget Airport near Paris, according to unnamed sources cited by the French media outlets TF1 TV and BFM TV.