Governing AI agent behavior: Aligning user, developer, role, and organizational intent
This research report explores the layers of agent intent and how to align them for secure enterprise AI adoption.
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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.
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Case study: How predictive shielding in Defender stopped GPO-based ransomware before it started
Microsoft Defender stopped a human-operated ransomware attack that abused Group Policy Objects (GPOs) to disable defenses and push encryption at scale. -
CTI-REALM: A new benchmark for end-to-end detection rule generation with AI agents
Excerpt: CTI-REALM is Microsoft’s open-source benchmark for evaluating AI agents on real-world detection engineering—turning cyber threat intelligence (CTI) into validated detections. -
Secure agentic AI end-to-end
In this agentic era, security must be woven into, and around, every layer of the AI estate. 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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New tools and guidance: Announcing Zero Trust for AI
Microsoft introduces Zero Trust for AI, adding a new AI pillar to its workshop, enhanced reference architecture, updated guidance, and a new assessment tool. -
When tax season becomes cyberattack season: Phishing and malware campaigns using tax-related lures
During tax season, threat actors reliably take advantage of the urgency and familiarity of time-sensitive emails, including refund notices, payroll forms, filing reminders, and requests from tax professionals, to push malicious attachments, links, or QR codes. -
Observability for AI Systems: Strengthening visibility for proactive risk detection
As AI systems grow more autonomous, observability becomes essential. -
New Microsoft Purview innovations for Fabric to safely accelerate your AI transformation
As organizations adopt AI, security and governance remain core primitives for safe AI transformation and acceleration. 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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Help on the line: How a Microsoft Teams support call led to compromise
A DART investigation into a Microsoft Teams voice phishing attack shows how deception and trusted tools can enable identity-led intrusions and how to stop them. -
Storm-2561 uses SEO poisoning to distribute fake VPN clients for credential theft
Storm-2561 uses SEO poisoning to push fake VPN downloads that install signed trojans and steal VPN credentials. -
From transparency to action: What the latest Microsoft email security benchmark reveals
The latest Microsoft benchmarking data reveals how Microsoft Defender mitigates modern email threats compared to SEG and ICES vendors. -
Detecting and analyzing prompt abuse in AI tools
Hidden instructions in content can subtly bias AI, and our scenario shows how prompt injection works, highlighting the need for oversight and a structured response playbook.
