Who really sent that email? Major organizations may be vulnerable to email spoofing

Scammers can pretend to be anyone they want to be by email and its not that difficult to do. Dylan Tweney of email security company, Valimail, shows CNBC how its done and says many major businesses are exposed. Free technology can fix the problem, but not everyone is using it, according to Tweney. CNBC's Andrea Day reports.
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Fri, Jun 12 20203:29 PM EDT