Rising cases of COVID-19 stock scams threaten investors

The popularity of making quick moves via stock-trading apps in 2020 and the string of hopeful headlines relating to COVID-19 vaccines could create a deadly mix for investors who don't do their homework. Not surprisingly, it's prime time for con artists who may push phony stock schemes that are pegged to the pandemic. The Securities and Exchange Commission has spotted a variety of bad deals, including wild claims that a small, little-known publicly traded company is on the verge of rolling out a cure for COVID-19 or another may be supposedly developing a product or service that can prevent or d...