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The $2 billion deal is a sign of consolidation among infrastructure equipment suppliers and the growing importance of software in the grid and transportation.
Files were affected during compromise, says company that makes software used in the "smart" electric grid.
Security firm Mandiant delivers compelling evidence that the Chinese military is behind a torrent of intrusions targeting the networks of U.S.-based companies. Here's what happens next.
Corporate partners are vital to nurturing innovations from green-tech start-ups and giving them the gravitas they need to scale beyond niche products.