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Report: Spies hacked into U.S. electricity grid

Spies from other countries have hacked into the United States’ electricity grid, leaving traces of their activity and raising concerns over the security of the U.S. energy infrastructure to cyberattacks.

The Wall Street Journal on Wednesday published a report saying that spies sought ways to navigate and control the power grid as well as the water and sewage infrastructure. It’s part of a rising number of intrusions, the article said, quoting former and current national security officials.