After successfully creating a health care app for doctors to view medical records, Diego Fasano, an Italian entrepreneur, got some well-timed advice from a police officer friend: Go into the surveillance business because law enforcement desperately needs technological help.

In 2014, he founded a company that creates surveillance technology, including powerful spyware for police and intelligence agencies, at a time when easy-to-use encrypted chat apps such as WhatsApp and Signal were making it possible for criminal suspects to protect phone calls and data from government scrutiny.

The concept behind the company’s product was simple: With the help of Italy’s telecom companies, suspects would be duped into downloading a harmless-seeming app, ostensibly to fix network errors on their phone. The app would also allow Fasano’s company, eSurv, to give law enforcement access to a device’s microphone, camera, stored files and encrypted messages.

Read the full article on Bloomberg’s website.