Chinese hackers, who previously breached Microsoft’s email platform, have successfully stolen tens of thousands of emails from U.S. State Department accounts, according to a Senate staffer who attended a briefing by State Department IT officials. The breach, reported on Wednesday, revealed that 60,000 emails were compromised from 10 State Department accounts, with a focus on individuals working on East Asia, the Pacific, and Europe. The incident, part of a broader compromise affecting multiple organizations, has heightened concerns about cybersecurity and the government’s reliance on a single vendor. The State Department is implementing measures, including multi-factor authentication, to enhance its security posture. China has denied allegations of involvement in the breach.