From nytimes.com
![The Commerce, Treasury and Defense Departments, as well as other federal agencies, were the targets of Russian hackers.](https://static01.nyt.com/images/2020/12/17/us/politics/17dc-hack/merlin_181216827_7f9f46b4-9620-49cf-b0a3-6f85e12cfdc7-articleLarge.jpg?quality=75&auto=webp&disable=upscale)
WASHINGTON — Federal officials issued an urgent warning on Thursday that hackers who American intelligence agencies believed were working for the Kremlin used a far wider variety of tools than previously known to penetrate government systems, and said that the cyberoffensive was “a grave risk to the federal government.”