"The argument from Telegram is, 'You should trust us because we tell you that we're trustworthy,'" Maréchal said. "It's really in the eye of the beholder whether that's something you want to buy into." 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. Despite Telegram's origins, its approach to users' security has privacy advocates worried. Founder Pavel Durov says tech is meant to set you free
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