Telegram founder and CEO Pavel Durov delivers his keynote conference during day two of the Mobile World Congress at the Fira Gran Via complex in Barcelona, Spain on February 23, 2016. The annual Mobile World Congress hosts some of the world's largest communication companies, the show runs from the 22 to 25 February. Photo by Manuel Blondeau/AOP.Press/Corbis (Photo by AOP.Press/Corbis via Getty Images)
