"And that set off kind of a battle royale for control of the platform that Durov eventually lost," said Nathalie Maréchal of the Washington advocacy group Ranking Digital Rights. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. Sebi said data, emails and other documents are being retrieved from the seized devices and detailed investigation is in progress. Oleksandra Matviichuk, a Kyiv-based lawyer and head of the Center for Civil Liberties, called Durov’s position "very weak," and urged concrete improvements.
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