According to a U.S. Office of Inspector General report published Tuesday, a cyberattack on NASA's Jet Propulsion Laboratory in April 2018 was due to a severe lack of security oversight. The attack was made possible via an unauthorized Raspberry Pi that was connected to JPL's network without any knowledge of the security team. Additionally, a lack of proper network segmentation allowed the hackers to access NASA's Deep Space Network, which is responsible for managing interplanetary missions.
https://www.notebookcheck.net/Hackers-attacked-NASA-s-Jet-Propulsion-Lab-via-a-Raspberry-Pi-stole-500-MB-of-mission-data.424881.0.html