SharePoint Hacks Turn Up Heat on Microsoft’s Cyber Overhaul

Three months ago, Microsoft Corp. issued a progress report on what it described as the largest cybersecurity engineering project in history.

Battered by its role in several major hacks, the software giant in late 2023 vowed to overhaul its cybersecurity, in a project called the Secure Future Initiative. The April report noted significant advances, including fostering a “security-first mindset” in employees and making strides in meeting engineering goals.

“Our progress will not be linear,” the report added.

It didn’t take long to prove the company’s point. On Tuesday, Microsoft accused three Chinese hacking groups, two tied to the government in ...