Hackers Targeted Senior U.S. Treasury Officials in Data Breach

Systems at the U.S. Treasury Department used by senior officials were accessed by hackers in a widespread cyberattack on federal agencies, according to Senator Ron Wyden.

“According to Treasury staff, the agency suffered a serious breach, beginning in July, the full depth of which isn’t known,” Wyden, the top Democrat on the Senate Finance Committee, said in a statement Monday. “Treasury still does not know all of the actions taken by hackers, or precisely what information was stolen.”

Ron Wyden earlier in November.

Photographer: Stefani Reynolds/Bloomberg

Wyden, and Senate Finance Committee Chairman Chuck Grassley, had requested to meet with Treasury and IRS officials after the ...