False news often spreads via public groups, or chats, with potentially fatal effects. Anastasia Vlasova/Getty Images After fleeing Russia, the brothers founded Telegram as a way to communicate outside the Kremlin's orbit. They now run it from Dubai, and Pavel Durov says it has more than 500 million monthly active users. Some privacy experts say Telegram is not secure enough Friday’s performance was part of a larger shift. For the week, the Dow, S&P 500 and Nasdaq fell 2%, 2.9%, and 3.5%, respectively.
from us