The FY2012 defense authorization act of December 13 included the following

Congress affirms that the Department of Defense has the
capability, and upon direction by the President may conduct
offensive operations in cyberspace to defend our Nation,
Allies and interests, subject to–
(1) the policy principles and legal regimes that the
Department follows for kinetic capabilities, including the
law of armed conflict; and
(2) the War Powers Resolution (50 U.S.C. 1541 et seq.).

It goes on to say that spying also is authorized

Military activities in cyberspace (sec. 954)
The House bill contained a provision (sec. 962) that would
clarify that the Secretary of Defense has the authority to
conduct clandestine cyberspace activities in support of
military operations pursuant to the Authorization for the Use
of Military Force (Public Law 107-40; title 50 United States
Code, section 1541 note) outside of the United States or to
defend against a cyber attack on an asset of the Department
of Defense.

And finally the War Powers Act may not be applicable

The conferees stress that, as with any use of force, the War
Powers Resolution may apply.

 

Essa aí é a tão comentada lei/ato americana(o) que foi aprovada(o) sobre o que os EUA poderão fazer no caso de um ciberataque. Muitos especulavam que o congresso americano autorizaria a utilização de força militar imediata contra o país ou organizações terroristas responsáveis pelo ataque. O problema é identificar com certeza o atacantes. Sabemos que não é bem simples como pensam no mundo virtual.

O fato é que o governo americano está investindo pesado em contra medidas ofensivas no caso de ataques, quer dizer, ele irá contra-atacar e não só militarmente.

Em 2012 teremos mais notícias.