Australian government says it does not know who perpetrated the hack. Hackers gained entry by exploiting a 12-month-old vulnerability in software that the contractor had failed to patch. The stolen data included information about Australia’s F-35 Joint Strike Fighter program, C130 transport plane and P-8 Poseidon surveillance aircraft. The company’s IT help desk portal had default credentials – including the username/password combinations “admin/admin” and “guest/guest” – including “Alf’s mystery happy fun time””]
Source: https://www.cuinfosecurity.com/hacker-steals-joint-strike-fighter-plans-in-australia-a-10376