The protection of cyberspace has become a vital national interest because of its importance both to the economy and to military power. An attacker may tamper with networks to steal information for money or to disrupt operations. Future wars are likely to be carried out, in part or perhaps entirely, in cyberspace. It might therefore seem obvious that maneuvering in cyberspace is like maneuvering in other media, but nothing would be more misleading. Cyberspace has its own laws.
"Three-year Old RAND Report You Can Find Free"