Identity security is the new pressure point for modern cyberattacks

Microsoft Security Blog (Mar 2026) posts covering multiple enterprise security topics: identity security as a key pressure point in modern attacks; a detailed analysis and detection/mitigation guidance for the Trivy supply‑chain compromise where trusted Trivy distribution channels were abused to inject credential‑stealing malware into CI/CD pipelines; a Defender case study showing predictive shielding prevented GPO‑based ransomware spread; CTI‑REALM, an open benchmark for AI‑driven detection rule generation; new guidance and tooling for securing agentic AI and introducing a Zero Trust for AI柱;