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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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.
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August 9, 2018

8 min read

Protecting the protector: Hardening machine learning defenses against adversarial attacks

Harnessing the power of machine learning and artificial intelligence has enabled Windows Defender Advanced Threat Protection (Windows Defender ATP) next-generation protection to stop new malware attacks before they can get started – often within milliseconds.
August 14, 2018

3 min read

How Microsoft 365 Security integrates with your broader IT ecosystem—part 3

In the final part of this blog series, we highlight how Microsoft 365 Security solutions work together to help customers secure their IT environments.
August 16, 2018

5 min read

Partnering with the industry to minimize false positives

Every day, antivirus capabilities in Microsoft Defender Advanced Threat Protection (Microsoft Defender ATP) protect millions of customers from threats.
September 5, 2018

7 min read

Practical application of artificial intelligence that can transform cybersecurity

There is tremendous opportunity to use AI—particularly machine learning—to improve the efficacy of cybersecurity, the detection of hackers, and even prevent attacks before they occur.
Modernize your Security Operations Center with Microsoft Sentinel
Microsoft Sentinel is a cloud-native SIEM solution powered by AI and automation that delivers intelligent security analytics across your entire enterprise.
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September 12, 2018

10 min read

Office VBA + AMSI: Parting the veil on malicious macros

As part of our continued efforts to tackle entire classes of threats, Office 365 client applications now integrate with Antimalware Scan Interface (AMSI), enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior.
October 17, 2018

4 min read

How Office 365 learned to reel in phish

Find out how Office 365 learned to mitigate phishing attacks.
October 24, 2018

4 min read

CISO series: Partnering with the C-Suite on cybersecurity

In my last blog, we looked at five communication techniques that can help engage business managers in the work of cybersecurity.
October 31, 2018

4 min read

How to share content easily and securely

This post is part of our blog series on deploying Intelligent Security scenarios.
Tailored AI insights from Microsoft Security Copilot
Empower your defenders to detect hidden patterns, harden defenses, and respond to incidents faster with generative AI.
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November 1, 2018

5 min read

CISO series: Build in security from the ground up with Azure enterprise

Shawn Anderson, a former CISO, now meets with CISOs every other week to answer their questions on moving to the cloud and where to start.
November 13, 2018

5 min read

CISO series: Lessons learned—4 priorities to achieve the largest security improvements

In this blog, Jonathan Trull shares methods he uses to prioritize where and how he spends his resources to achieve the largest security improvements.
November 13, 2018

4 min read

The evolution of Microsoft Threat Protection, November update

Learn about the latest enhancements to Microsoft Threat Protection, the premier solution for securing the modern workplace across identities, endpoints, user data, apps, and infrastructure.
November 15, 2018

6 min read

What’s new in Windows Defender ATP

We added new capabilities to each of the pillars of Windows Defender ATP’s unified endpoint protection platform: improved attack surface reduction, better-than-ever next-gen protection, more powerful post-breach detection and response, enhanced automation capabilities, more security insights, and expanded threat hunting.