Newly Discovered Russian Hack Sought to Access Email of U.S. Agency

A newly disclosed effort by Russian intelligence to hijack the email system of a United States government agency prompted leading Democrats to urge stronger action against Moscow for accelerating cyberattacks ahead of President Biden’s summit next month with President Vladimir V. Putin. The latest hack, brought to light by Microsoft and other private firms, exposed how Russia’s S.V.R., the same intelligence agency that Washington has blamed for a range of cyberattacks on American networks over the past decade, infiltrated the communications company that distributes emails on behalf of the United States Agency for International Development.