Disproportionate response sounds good, but it assumes that we have the ability to identify the problem and respond. I'm sceptical.  Until we tie our info ops into a grander strategy than what we have, our responses will be inadequate, slow, and sucky. 

Defense Net Attacks Should Be Countered With 'Disproportionate Response'

That's the advice contained in a little-noticed report, "The Defense Science Board (DSB) 2006 Summer Study on Information Management for Net-Centric Operations," which was released in April.

"Adversaries need to be assured that their attacks against U.S. information systems will be detected, that U.S. functionality will be restored," according to the report. "... and an adversary needs to know that the U.S. possesses powerful hard and soft-kill (cyberwarfare) means for attacking adversary information and command and support systems at all levels."