(CNN) -- On perhaps this year's most compelling drama, the credits have yet to roll. Many have described that drama -- a story, apparently directed by North Korea, of Sony Pictures being hacked in retribution for a movie our foreign adversary considered an affront -- as novel. It is not. While this cyberattack is notable for how much it took place in public view, the offensive use of cyber-weapons is far from new. Sony is, in fact, just the latest victim in a recent, escalating spate of such attacks aimed at undermining our economic and national security interests. Examples are numerous, and the damage to our economic and national interests has been severe. Our financial institutions have been repeatedly targeted by criminal enterprises acting with impunity and at the direction of countries like Russia and Iran, according to news reports.
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John McCain: Sony hack is only one recent example of escalating cyber-attacks
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Such attacks, some laid to China and Russia, threaten U.S. interests, he says
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He says the administration and Congress must develop a comprehensive cyber strategy
When @placeholder returns in January, I will work to make cyber-security a top priority.