At first glance, Renée DiResta thought the LinkedIn message seemed normal enough. The sender, Keenan Ramsey, mentioned that they both belonged to a LinkedIn group for entrepreneurs. She punctuated her greeting with a grinning emoji before pivoting to a pitch for software. “Quick question — have you ever considered or looked into a unified approach to message, video, and phone on any device, anywhere?” DiResta wasn’t interested and would have ignored the message entirely, but then she looked closer at Ramsey’s profile picture. Little things seemed off […]

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