Over several months, the hackers continued to map NASAs internal web connection.
Drones such as Global Hawk and public missions like OIB Operation Ice Bridge were among those mentioned.
But it went down for a while soon after.
When they came back up several days later, we had completely lost access.
NASA has been breached more times than most people can honestly remember… People might find this lack of security surprising but its [sic] pretty standard from our experience.
source: www.techworm.net