French authorities have detained the founder and CEO of the popular news and messaging service Telegram. Pavel Durov was detained at a Paris airport on an arrest warrant related to allegations that Telegram has been used for illegal activity. Durov is a dual French-Russian citizen. Telegram posted a message online saying, “It is absurd to claim that a platform or its owner are responsible for abuse of that platform. Almost a billion users globally use Telegram as means of communication and as a source of vital information.” The app has a history of refusing to cooperate with law enforcement.