The National Defense University (NDU) computer systems were hit by a targeted cyberattack in July 2016.
The attack compromised the ordinary academic research materials, no classified information had been stolen.
They immediately started an investigation and restored the information.
Source: https://www.databreaches.net/tw-defense-university-computers-hacked-information-secure/
"id": "NAT11173622",
"linkid": "national-defense-university",
"type": "Cyber Attack",
"date": "07/2016",
"severity": "25",
"impact": "1",
"explanation": "Attack without any consequences"