"Like the bombing of the maternity ward in Mariupol," he said, "Even before it hits the news, you see the videos on the Telegram channels." But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Stocks closed in the red Friday as investors weighed upbeat remarks from Russian President Vladimir Putin about diplomatic discussions with Ukraine against a weaker-than-expected print on U.S. consumer sentiment. READ MORE Anastasia Vlasova/Getty Images
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