Wordnet 3.0
NOUN (1)
1. 
 the use of information or information technology during a time of crisis or conflict to achieve or promote specific objectives over a specific adversary or adversaries; 
- Example: "not everyone agrees that information warfare is limited to the realm of traditional warfare"[syn: information warfare, IW]
WordNet (r) 3.0 (2006):
IW
    n 1: the use of information or information technology during a
         time of crisis or conflict to achieve or promote specific
         objectives over a specific adversary or adversaries; "not
         everyone agrees that information warfare is limited to the
         realm of traditional warfare" [syn: information warfare,
         IW]