What is Anom, and how did law enforcement use it to arrest hundreds in a global sting?

Police arrest a suspect in Victoria, Australia, after an elaborate sting operation that relied on an encrypted messaging app. (Victoria police/EPA-EFE/Shutterstock)

Law enforcement officials around the world announced Tuesday that they had tricked hundreds of alleged criminals into using an encrypted messaging app called Anom, secretly controlled by the FBI.

The American investigation service teamed up with Australian police and a host of European law enforcement agencies in an audacious effort to give officials a backdoor view of alleged global criminal enterprises.

Here’s what we know about the sting and its impact.

FBI-controlled Anom app ensnares scores of alleged criminals in global police sting