All news on the topic: Vladimir Vedeneev

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Telegram under scrutiny as review claims app leaks identifiers that could enable user tracking
An independent cybersecurity review obtained by Important Stories found that Telegram exposes persistent device identifiers that could allow passive tracking of users across networks and locations.
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Shadow curator of Telegram: how Russian intelligence agencies access data of billions of users
The technical infrastructure that underpins Telegram is controlled by a man whose companies have collaborated with Russian intelligence services.