At least three government agencies have been the target of a major cyberspying campaign, apparently by the Russian government. We learned this week that hackers have been spying on the U.S. departments of Commerce, Treasury and even Homeland Security since the spring, and officials say it’s likely there are more victims that haven’t been revealed yet. The attackers got in by corrupting software updates from the company SolarWinds, which provides network management tools to the agencies. Molly Wood speaks with Kim Zetter, a cybersecurity journalist and author.

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