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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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.
Learn more
January 10, 2022

10 min read

New macOS vulnerability, “powerdir,” could lead to unauthorized user data access

A new macOS vulnerability, “powerdir,” could allow an attacker to bypass the operating system’s TCC technology and gain unauthorized access to a user’s protected data.
January 13, 2022

8 min read

Learn about 4 approaches to comprehensive security that help leaders be fearless

The last 18 months have put pressure on organizations to speed up their digital transformation as hybrid work continues to become the new normal.
January 26, 2022

9 min read

Evolved phishing: Device registration trick adds to phishers’ toolbox for victims without MFA

We uncovered a large-scale, multi-phase campaign that adds a novel technique to traditional phishing tactics by joining an attacker-operated device to an organization’s network to further propagate the campaign.
January 27, 2022

6 min read

Measure the effectiveness of your Microsoft security with AttackIQ

Microsoft and AttackIQ are working together to automate testing using MITRE ATT&CK and a threat-informed defense.
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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January 28, 2022

3 min read

Gartner® names Microsoft a Leader in the 2022 Magic Quadrant™ for Enterprise Information Archiving

We are honored that Gartner has listed Microsoft as a Leader in its 2022 Magic Quadrant for Enterprise Information Archiving in recognition of our ability to execute and completeness of vision.
February 3, 2022

3 min read

Cyber Signals: Defending against cyber threats with the latest research, insights, and trends

We’re excited to introduce Cyber Signals, a cyber threat intelligence brief informed by the latest Microsoft threat data and research.
February 4, 2022

19 min read

ACTINIUM targets Ukrainian organizations

The Microsoft Threat Intelligence Center (MSTIC) is sharing information on a threat group named ACTINIUM, which has been operational for almost a decade and has consistently pursued access to organizations in Ukraine or entities related to Ukrainian affairs.
February 7, 2022

10 min read

Detect active network reconnaissance with Microsoft Defender for Endpoint

Active network reconnaissance is a critical component of the cybersecurity kill chain allowing for network topography and endpoint services to be mapped and used in targeted campaigns.
Go beyond data protection with Microsoft Purview
Govern, protect, and manage all of your data with Microsoft Purview, comprehensive solutions to help give you better visibility and control.
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February 17, 2022

6 min read

4 best practices to implement a comprehensive Zero Trust security approach

Learn how to create a comprehensive, integrated Zero Trust approach that enables simplified security and compliance across your enterprise.
February 23, 2022

5 min read

Microsoft Security delivers new multicloud capabilities

In times of great change, challenges and opportunities can be found in many directions.
February 28, 2022

8 min read

How Microsoft can help reduce insider risk during the Great Reshuffle

These are exciting and demanding days for organizations adapting to hybrid work realities, including a wider distributed workforce and more rapid change in employee roles.
March 3, 2022

7 min read

Secure your OT and IoT devices with Microsoft Defender for IoT and Quzara Cybertorch™

In recent years, malicious actors have started attacking industrial control systems and key sectors of nations’ critical infrastructure to inflict damage that transcends the cyber world and traditional IT assets.