Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. Sebi said data, emails and other documents are being retrieved from the seized devices and detailed investigation is in progress. 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. The gold standard of encryption, known as end-to-end encryption, where only the sender and person who receives the message are able to see it, is available on Telegram only when the Secret Chat function is enabled. Voice and video calls are also completely encrypted. Founder Pavel Durov says tech is meant to set you free
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