The idea behind Operation Trojan Shield was concocted over beers between the Australian police and the FBI in 2018, officials have said. Another similar encrypted messaging system, Phantom Secure, had been shut down around that time, creating a new gap in the market.
The FBI then persuaded an unnamed developer who had already begun building an encrypted platform called ANOM to allow them to commandeer the app, and also to introduce it to suspected criminals, according to court documents. In return, the developer, who was facing prison, would receive $120,000, a lighter prison sentence and travel expenses.