Messaging apps are the newest pump-and-dump tool

Pump-and-dump schemers have found a platform for the 21st century. Scammers took to messaging app WhatsApp to convince users to buy shares of over-the-counter stock Avra, before shedding their stake at a higher price, the Financial Industry Regulatory Authority said in a notice Wednesday. Some app users received messages, apparently from employees of well-known brokerages, saying Avra was ...