"The result is on this photo: fiery 'greetings' to the invaders," the Security Service of Ukraine wrote alongside a photo showing several military vehicles among plumes of black smoke. Anastasia Vlasova/Getty Images Although some channels have been removed, the curation process is considered opaque and insufficient by analysts. WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. Some privacy experts say Telegram is not secure enough
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