The Economic Times

In 1999, a Florida teen hacked NASA, accessed source code of ISS and forced the world's most powerful space agency to shut down some systems for 21 days

In 1999, 15-year-old hacker Jonathan James broke into NASA computers and downloaded proprietary software linked to the International Space Station. NASA shut down affected systems for 21 days, while the incident reportedly cost about $41,000 to investigate and repair. James was later arrested and sentenced as a juvenile.