Chinese hackers breached the U.S. National Nuclear Security Administration through Microsoft SharePoint, with the Energy Department confirming no sensitive information was stolen.

A significant flaw in a widely used Microsoft product allowed multiple Chinese-linked hacking groups to breach dozens of organizations across the globe and at least two U.S. federal agencies.

The Chinese state-sponsored hacking group known as Salt Typhoon has already shocked the US once with the revelation last year that it had deeply penetrated American telecom systems, even targeting the text messages and phone conversations of citizens including then-candidates Donald Trump and JD Vance in real time.

Suspected Chinese hackers have broken into the email accounts of attorneys and advisers at a powerful Washington, DC, law firm in an apparent intelligence-gathering operation, the firm, Wiley Rein, told clients this week in a memo reviewed by CNN.