Hmm..
NASA has had problems with Computer Virus contamination in the past. In
October 1997 NASA spread a Macro Virus (which infects MS Office products
such as MS Word wordprocessor) from Houston to Moscow, and infected the
workstations that are used for Mir spacestation ground control including
daily communications with the Mir Crew. While the on-board computers on the
Mir spacestation were not infected, the laptop used by the American
astronaut was.