Leonardo Hack Allegedly Targeted Details Of nEUROn UCAV Program Leonardo Hack Allegedly Targeted Details Of nEUROn UCAV Program Preliminary inquiry documents in the Leonardo hack suggest hackers were targeting nEUROn drone, C-27J and ATR-72 documents. For almost two years, between May 2015 and January 2017, the IT infrastructure of Leonardo, the Italian multinational aerospace and defense company, and the 8th largest defence contractor in the world, was targeted by a persistent cyber attack (known as Advanced Persistent Threat or APT), carried out with installation in systems, networks and in the target machines, of a malicious code whose aim was the creation of active communication channels suitable to allow a slow and continuous leakage of technical and business data.