Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels. "He has kind of an old-school cyber-libertarian world view where technology is there to set you free," Maréchal said. For Oleksandra Tsekhanovska, head of the Hybrid Warfare Analytical Group at the Kyiv-based Ukraine Crisis Media Center, the effects are both near- and far-reaching. 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. Some privacy experts say Telegram is not secure enough
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