The ANOM (also stylized as AN0M or ΛNØM) sting operation (known as Operation Trojan Shield (stylized TRØJAN SHIELD) or Operation Ironside) is a collaboration by law enforcement agencies from several countries, running between 2018 and 2021, that intercepted millions of messages sent through the supposedly secure smartphone-based proprietary messaging app ANOM. https://en.wikipedia.org/wiki/Operation_Trojan_Shield