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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June 17

12 min read

Crypto Clipper uses Tor and worm-like propagation for persistence and control

Microsoft Threat Intelligence analyzed a cryptocurrency clipper campaign that combines clipboard theft, wallet replacement, Tor-based communications, and worm-like propagation.
June 17

12 min read

Beyond the benchmark: Advancing security at AI speed

Read how Microsoft Security has advanced its agentic vulnerability detection system, codename MDASH, integrating into real-world workflows across Windows, Azure, and identity systems.
June 17

4 min read

Forrester names Microsoft a Leader in the 2026 Extended Detection and Response Platforms Wave™ report

Microsoft has been named a Leader in The Forrester Wave™: Extended Detection and Response Platforms, Q2 2026.
June 15

4 min read

Microsoft Defender email security benchmarking: Key insights from one year of data

See how Microsoft Defender performed in one year of real-world email security benchmarking against SEG and ICES vendors.
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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.

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June 8

17 min read

AI brands as bait: How threat actors are using the AI hype in social engineering

As threat actors operationalize AI to accelerate attacks, they are also leveraging the wider global interest around AI itself as a social engineering lure.
June 5

10 min read

Securing CI/CD in an agentic world: Claude Code Github action case

Microsoft Threat Intelligence identified a prompt injection pathway in Claude Code GitHub Action that allowed access to workflow secrets under specific conditions.
June 2

12 min read

Preinstall to persistence: Inside the Red Hat npm Miasma credential-stealing campaign

A large-scale npm supply chain attack compromised over 90 versions of @redhat-cloud-services packages, silently infecting CI/CD environments and developer systems.
June 2

8 min read

Microsoft Build 2026: Securing code, agents, and models across the development lifecycle

Discover how Microsoft enables fast, secure AI development with MDASH and new security capabilities.
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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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May 29

16 min read

Malicious npm packages abuse dependency confusion to profile developer environments

A dependency confusion campaign leveraged 33 malicious npm packages to collect reconnaissance data from developer and build environments.
May 29

3 min read

Microsoft is named a Leader in the 2026 Gartner® Magic Quadrant™ for Endpoint Protection

Microsoft is named a Leader in the 2026 Gartner® Magic Quadrant™ for Endpoint Protection.
May 28

9 min read

Typosquatted npm packages used to steal cloud and CI/CD secrets

The Mini Shai-Hulud campaign used malicious npm packages to target cloud and CI/CD credentials across developer environments.
May 28

24 min read

The Gentlemen ransomware: Dissecting a self-propagating Go encryptor

Microsoft Threat Intelligence presents a comprehensive analysis of The Gentlemen, a Go-based ransomware deployed by affiliates of Storm-2697 that combines per-file ephemeral key encryption with an aggressive self-propagation module to deploy itself across an entire network using series of simultaneous lateral movement techniques per target.

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