For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. READ MORE Russian President Vladimir Putin launched Russia's invasion of Ukraine in the early-morning hours of February 24, targeting several key cities with military strikes. Despite Telegram's origins, its approach to users' security has privacy advocates worried. The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app.
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