Microsoft Defender

Microsoft Defender helps prevent, detect, and respond to attacks across devices, identities, apps, email, data, workloads, and clouds. Explore threat intelligence, capabilities, and real-world guidance to help you get more out of Defender.

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Secure and verify every identity with Microsoft Entra
Microsoft Entra expands beyond identity and access management with new product categories such as cloud infrastructure entitlement management (CIEM) and decentralized identity.
Learn more
January 25, 2023

8 min read

Microsoft Security reaches another milestone—Comprehensive, customer-centric solutions drive results

Learn how Microsoft Security is simplifying security for the new hybrid, multi-platform environment while fostering a diverse new generation of defenders—and how your organization can benefit.
January 23, 2023

8 min read

Microsoft Security innovations from 2022 to help you create a safer world today

Learn about the more than 300 Microsoft Security innovations launched in 2022, and how we’re making cybersecurity more inclusive and representative of our communities.
January 17, 2023

8 min read

Secure your business like you secure your home: 5 steps to protect against cybercrime

Learn five simple actions small and medium-sized businesses can take to protect against evolving cyberattacks, as well as where to access tools and resources for securing your company.
January 9, 2023

7 min read

Microsoft Entra: 5 identity priorities for 2023

Organizations are looking for opportunities to do more with less.
Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
Explore products
December 19, 2022

9 min read

Gatekeeper’s Achilles heel: Unearthing a macOS vulnerability

Microsoft discovered a vulnerability in macOS, referred to as “Achilles”, allowing attackers to bypass application execution restrictions enforced by the Gatekeeper security mechanism.
December 15, 2022

9 min read

MCCrash: Cross-platform DDoS botnet targets private Minecraft servers

The Microsoft Defender for IoT research team analyzed a cross-platform botnet that infects both Windows and Linux systems from PCs to IoT devices, to launch distributed denial of service (DDoS) attacks against private Minecraft servers.
December 15, 2022

6 min read

Do more with less with Microsoft Security—3 strategies to get you started

Microsoft Corporate Vice President of Compliance, Identity, and Management Vasu Jakkal explores what it means to do more with less in your security approach.
December 13, 2022

4 min read

4 things to look for in a multicloud data protection solution

Learn four must-haves for multicloud data protection, including how an integrated solution provides greater scalability and protection across your multicloud and hybrid environment.
Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
Get started
December 7, 2022

4 min read

Mitigate threats with the new threat matrix for Kubernetes

The updated threat matrix for Kubernetes comes in a new format that simplifies usage of the knowledge base and with new content to help mitigate threats.
December 6, 2022

18 min read

DEV-0139 launches targeted attacks against the cryptocurrency industry

Microsoft security researchers investigate an attack where the threat actor, tracked DEV-0139, used chat groups to target specific cryptocurrency investment companies and run a backdoor within their network.
November 22, 2022

6 min read

Vulnerable SDK components lead to supply chain risks in IoT and OT environments

As vulnerabilities in network components, architecture files, and developer tools have become an increasingly popular attack vector to leverage access into secure networks and devices, Microsoft identified such a vulnerable component and found evidence of a supply chain risk that might affect millions of organizations and devices.
November 3, 2022

7 min read

Identifying cyberthreats quickly with proactive security testing

Hacker House co-founder and Chief Executive Officer Matthew Hickey offers recommendations for how organizations can build security controls and budget.