The NSA - Prism program has compromised the assets of friendly and non-friendly states and (possibly) continues to do so. Yet all affected countries have just taken it easy and not spoken up or retaliated (except Brazil).
India Pakistan have border skirmishes every other day and hordes are killed by terrorists (non-state actors) and armies (state actors). However, even though, website defacement and data ex filtration is regularly announced by non-state players there is no "tough" talk or overt action!
In the past few days North Korea is (said to be) the country behind the SONY hack because of the movie 'The Interview'. The USA is said to be affected badly with the hack but there is no strike back! And, going back into history, there are other incidents when South Korea has been repeatedly been (supposedly) attacked by North Korea and there has been no counter-strike! Not even a word of warning, leave alone the 'stern warning' type of public statement.
This infographic shows a few landmark events but what about counter strikes, what about public warnings what about cease-and-desist statements... none!