Gangsters of the past may have headed to their nearest payphone to make risky calls, but modern day criminals have a much more convenient option: encrypted cellphones. The question is, who makes these phones and secure apps? In 2018, one phone app came along that was specifically marketed to criminal clientele. It was called Anom, and its mass adoption by organized crime groups around the world would eventually lead to the biggest sting in history. This week on Whale Hunting, investigative reporter Joseph Cox unravels the full story, explaining what criminals loved about Anom, the questionable decision to allow serious crimes to continue as evidence was collected, and even gangsters' favorite emojis.

Anom is the topic of Joseph's new book, Dark Wire: The Incredible True Story of the Largest Sting Operation Ever, which is out now online and in all good bookshops.

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