Microsoft purges dormant Azure tenants, rotates keys to prevent repeat nation-state hack 

Microsoft, touting what it calls “the largest cybersecurity engineering project in history,” says it has moved every Microsoft Account and Entra ID token‑signing key into hardware security modules or Azure confidential VMs with automatic rotation, an overhaul meant to block the key‑theft tactic that fueled an embarrassing nation‑state breach at Redmond.

Just 18 months after rolling out a Secure Future Initiative in response to the hack and a scathing US government report that followed, Microsoft security chief Charlie Bell said five of the program’s 28 objectives are “near completion” and that 11 others have made “significant progress.”

Read more at Security Week