Growth is so fast we didn't get much sleep in last 72 hours: Signal's Acton
WhatsApp Co-founder Brian Acton, who also heads the Signal Foundation that's behind Signal, said that many people at Signal didn't get much sleep in the last 72 hours due to massive growth. "The growth has driven Signal to add capacity to meet the demand," Acton said. Signal, which employs less than 50 people, topped iOS App Store in 40 countries.