Microsoft Defender delivered 242% return on investment over three years​​

The latest Forrester Total Economic Impact™ TEI study reveals a 242% return on investment ROI over three years for organizations that chose Microsoft Defender. It helps security leaders consolidate tools, reduce overhead, and empower their security operations SecOps teams with operational...

Azure mandatory multifactor authentication: Phase 2 starting in October 2025

As cyberattacks become increasingly frequent, sophisticated, and damaging, safeguarding your digital assets has never been more critical, and at Microsoft, your security is our top priority. Microsoft research shows that multi-factor authentication MFA can block more than 99.2% of account...

Azure mandatory multifactor authentication: Phase 2 starting in October 2025

As cyberattacks become increasingly frequent, sophisticated, and damaging, safeguarding your digital assets has never been more critical, and at Microsoft, your security is our top priority. Microsoft research shows that multi-factor authentication MFA can block more than 99.2% of account...

Microsoft ranked number one in modern endpoint security market share third year in a row

Amidst the backdrop of a surging number of ransomware campaigns worldwide, organizations have increasingly chosen Microsoft Defender’s endpoint security as their preferred solution. It’s engineered to disrupt cyberattacks and not business continuity. As a result, for a third year a row, Microsoft...

Dissecting PipeMagic: Inside the architecture of a modular backdoor framework

Among the plethora of advanced attacker tools that exemplify how threat actors continuously evolve their tactics, techniques, and procedures TTPs to evade detection and maximize impact, PipeMagic, a highly modular backdoor used by Storm-2460 masquerading as a legitimate open-source ChatGPT Deskto...

Connect with the security community at Microsoft Ignite 2025

In today’s AI-powered world, security professionals are facing unprecedented challenges—and opportunities. As generative AI reshapes the digital landscape, the need for robust, intelligent, and adaptive security strategies has never been more urgent. At Microsoft Ignite 2025, we will showcase...

Learn how to build an AI-powered, unified SOC in new Microsoft e-book

The sheer volume of cyberattacks continues to increase at a breathtaking scale worldwide, with customers facing more than 600 million cybercriminal and nation-state attacks every day.1 To stem the growing tide of malicious cyber activity takes a commitment from all of us—individuals from operatio...

Building security that lasts: Microsoft’s journey towards durability at scale ​​

In this blog you will hear directly from Microsoft’s Deputy Chief Information Security Officer CISO for Azure and operating systems, Mark Russinovich, about how Microsoft operationalized security durability at scale. This blog is part of an ongoing series where our Deputy CISOs share their though...

Data Breach Reporting for regulatory requirements with Microsoft Data Security Investigations​​

Seventy-four percent of organizations surveyed experienced at least one data security incident with their business data exposed in the previous year as reported in Microsoft’s Data Security Index: Trends, insights, and strategies to secure data report. Despite the best people, process and...

New e-book: Establishing a proactive defense with Microsoft Security Exposure Management

Effective exposure management begins by illuminating and hardening risks across the entire attack surface. Some of the most meaningful shifts in security happen quietly—when teams take a clear look at their exposure landscape and acknowledge the gap between where they stand today and where they...

Microsoft named a Leader in IDC MarketScape for Unified AI Governance Platforms

As organizations rapidly embrace generative and agentic AI, ensuring robust, unified governance has never been more critical. That’s why Microsoft is honored to be named a Leader in the2025-2026 IDC MarketScape for Worldwide Unified AI Governance Platforms Vendor Assessment US53514825, December...

Microsoft named a leader in the 2025 Gartner® Magic Quadrant™ for Email Security

We’re honored to share that Microsoft has been named a Leader in the 2025 Gartner® Magic Quadrant™ for Email Security. We believe this recognition highlights the value of Microsoft Defender for Office 365’s innovative capabilities in addressing today’s complex email security challenges. Protect...

​​Securing critical infrastructure: Why Europe’s risk-based regulations matter

The Deputy CISO blog series is where Microsoft Deputy Chief Information Security Officers CISOs share their thoughts on what is most important in their respective domains. In this series, you will get practical advice, tactics to start and stop deploying, forward-looking commentary on where the...

The 5 generative AI security threats you need to know about detailed in new e-book

Generative AI is reshaping the way security teams operate—accelerating threat detection, automating workflows, and enabling scale. But as defenders embrace AI to strengthen their posture, cyberattackers are doing the same to evolve faster than traditional defenses can adapt. Microsoft’s 2025...

Inside the attack chain: Threat activity targeting Azure Blob Storage

Azure Blob Storage, like any object data service, is a high-value target for threat actors due to its critical role in storing and managing massive amounts of unstructured data at scale across diverse workloads. Organizations of all sizes use Blob Storage to support key workloads—such as AI, high...

Extortion and ransomware drive over half of cyberattacks

In 80% of the cyber incidents Microsoft’s security teams investigated last year, attackers sought to steal data—a trend driven more by financial gain than intelligence gathering. According to the latest Microsoft Digital Defense Report, written with our Chief Information Security Officer Igor...

Microsoft Purview delivered 30% reduction in data breach likelihood

In today’s digital-first world, data is both an asset and a liability. As organizations scale their use of cloud platforms, AI, and remote collaboration tools, the complexity of managing data security, data privacy, and regulatory compliance grows exponentially. For organizations, the challenge i...