In today's podcast, we hear about the possibility that Russian hackers prepared for attacks on Ukraine's power grid with earlier incursions into mining and railroad networks. We consider hacktivists' motives, and relay some news on the arrest of an alleged Cracka with Attitude. More countries look to develop an offensive cyber capability. And we hear from the University of Maryland's Jonathan Katz on provable security. http://thecyberwire.com

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