Microsoft says Russian hackers accessed more than initially reported

A Microsoft sign.
(Image credit: Jeenah Moon/Getty Images)

Microsoft said Thursday that suspected Russian hackers who targeted federal agencies and U.S. companies accessed more of its systems than previously believed.

The company revealed that the hackers managed to look at Microsoft source code through an employee account, although they were unable to access emails or Microsoft products and services. "Our investigation into our own environment has found no evidence of access to production services or customer data," Microsoft said in a blog post. "The investigation, which is ongoing, has also found no indications that our systems were used to attack others."

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Harold Maass, The Week US

Harold Maass is a contributing editor at The Week. He has been writing for The Week since the 2001 debut of the U.S. print edition and served as editor of TheWeek.com when it launched in 2008. Harold started his career as a newspaper reporter in South Florida and Haiti. He has previously worked for a variety of news outlets, including The Miami Herald, ABC News and Fox News, and for several years wrote a daily roundup of financial news for The Week and Yahoo Finance.