May 22, 2026 May 22, 2026 When Microsoft's Own Email Becomes the Weapon A Microsoft CSP's analysis of notification abuse through CISA SCuBA, MITRE ATT&CK, NIST SP 800-53, and CIS Benchmarks — and what organizations must do now. Featured CybersecurityMITRE ATT&CKNIST SP 800-53CISA SCuBAMicrosoft 365