Beyond source code: A path to the keys to the kingdom
Explore how Storm-3068 turned a compromised identity into broader cloud access and the steps organizations can take to defend their identities, pipelines, and cloud infrastructure.
Threat trends
Cybersecurity threats are always changing. Explore the latest trends—and learn how to stay ahead of them.
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Detect and disrupt AI-themed attacks with Microsoft Defender
See how Microsoft Defender detects and disrupts AI-themed phishing, malware, and multi-stage attacks across the attack chain. -
Microsoft at Black Hat USA 2026: Defending trust in the age of AI and supply chain attacks
Join Microsoft Security at Black Hat USA 2026 for supply chain research, hands-on security experiences, expert conversations, and our reception. -
What’s new in Microsoft Security: June 2026
This month’s updates help security and IT teams strengthen identity and multicloud foundations, protect data wherever it lives, and secure the developer workflows powering AI innovation. Retain Microsoft Defender Experts
Microsoft Defender Experts are available to strengthen your teams with expertise when and where you need it. Learn how to elevate your security with expert-led services.
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One intrusion, two cyberattackers: Uncovering parallel threat activity
Ransomware case reveals two parallel threat actors, blending tactics and evasion—showing why isolated signals can often miss modern, overlapping cyberattacks. -
The CISO imperative: Building resilience in an era of accelerated cyberthreats
The latest Microsoft Digital Defense Report 2025 paints a vivid picture of a cyberthreat landscape in flux. -
Cyber Signals Issue 9 | AI-powered deception: Emerging fraud threats and countermeasures
Microsoft maintains a continuous effort to protect its platforms and customers from fraud and abuse. -
How cyberattackers exploit domain controllers using ransomware
Read how cyberattackers exploit domain controllers to gain privileged system access where they deploy ransomware that causes widespread damage and operational disruption. 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.
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Microsoft Threat Intelligence healthcare ransomware report highlights need for collective industry action
Healthcare organizations are an attractive target for ransomware attacks. -
Cyber Signals Issue 8 | Education under siege: How cybercriminals target our schools
This edition of Cyber Signals delves into the cybersecurity challenges facing classrooms and campuses, highlighting the critical need for robust defenses and proactive measures. -
How Microsoft discovers and mitigates evolving attacks against AI guardrails
Read about some of the key issues surrounding AI harms and vulnerabilities, and the steps Microsoft is taking to address the risk. -
How Microsoft Incident Response and Microsoft Defender for Identity work together to detect and respond to cyberthreats
Learn how Microsoft Incident Response works together with Microsoft Defender for Identity to give customers fast, flexible service—before, during, or after a cybersecurity incident occurs.
