Craig Silverman, BuzzFeed News:

Last April, Steven Schoen received an email from someone named Natalie Andrea who said she worked for a company called We Purchase Apps. She wanted to buy his Android app, Emoji Switcher. But right away, something seemed off.

“I did a little bit of digging because I was a little sketched out because I couldn’t really find even that the company existed,” Schoen told BuzzFeed News.

The We Purchase Apps website listed a location in New York, but the address appeared to be a residence. “And their phone number was British. It was just all over the place,” Schoen said.

It was all a bit weird, but nothing indicated he was about to see his app end up in the hands of an organization responsible for potentially hundreds of millions of dollars in ad fraud, and which has funneled money to a cabal of shell companies and people scattered across Israel, Serbia, Germany, Bulgaria, Malta, and elsewhere.

Oh, what a scheme. Incredibly sophisticated scam. Amazing story.