Microsoft Corporation (NASDAQ: MSFT) operates the largest cybersecurity business in the world, surpassing $20 billion in annual security revenue in 2024. That is larger than any pure-play security vendor. The company protects over 1 million organizations and leverages 78 trillion daily security signals processed across its cloud infrastructure.
Security Products
Microsoft Defender for Endpoint provides EDR, next-generation antivirus, and attack surface reduction. The broader Defender XDR suite extends detection and response across endpoints, email, identity, and cloud applications with unified incident correlation.
Microsoft Sentinel is a cloud-native SIEM built on Azure that provides log aggregation, AI-driven analytics, and automated response through playbooks. It integrates natively with the Defender XDR suite and supports over 300 third-party data connectors. In 2025, Microsoft unified Sentinel and Defender XDR into a single security operations platform.
Microsoft Entra ID, formerly Azure Active Directory, is the world’s most widely deployed cloud identity platform. It serves as the identity provider for Microsoft 365, Azure, and thousands of third-party SaaS applications. The broader Entra portfolio includes Permissions Management for CIEM, Verified ID, and Internet Access for ZTNA.
Microsoft Purview consolidates data loss prevention, information protection, insider risk management, data lifecycle management, and compliance across Microsoft 365 and multicloud environments.
Microsoft Defender for Cloud is their cloud-native application protection platform covering CSPM, CWPP, and DevSecOps across Azure, AWS, and GCP.
Security Copilot is an AI-powered security operations assistant that uses GPT-4 to accelerate incident investigation, threat hunting, and posture management. It integrates across Defender, Sentinel, Entra, Intune, and Purview, and supports third-party plugin integrations.
Secure Future Initiative
Launched in November 2023 and expanded in May 2024 following criticism of the Storm-0558 breach, the Secure Future Initiative is Microsoft’s company-wide commitment to prioritize security. Key measures include tying executive compensation to security outcomes, deploying MFA and phishing-resistant credentials across all employees, and reducing the internal attack surface.
Market Position
Microsoft is a Leader in the Gartner Magic Quadrant for Endpoint Protection Platforms, Security Information and Event Management, and Access Management. The company’s competitive advantage is integration. Organizations already using Microsoft 365 and Azure can deploy security tools with minimal additional infrastructure.
Leadership
Satya Nadella is Chairman and CEO. Charlie Bell, formerly a VP at AWS, serves as EVP of Security. Vasu Jakkal is Corporate VP of Security, Compliance, Identity, and Privacy.