Learn how to investigate AI activity in Microsoft 365 Copilot and Azure AI services using a structured, telemetry-driven approach. This playbook helps security teams reconstruct events, assess data exposure, and detect potential threats faster.
The post Reconstructing AI activity in investigations appeared first on Microsoft Security Blog. READ MORE HERE…
A surge in real-world attacks against agentic AI systems is reshaping how we think about risk. Based on 12 months of red teaming, this update introduces seven new failure modes, from supply chain compromise to goal hijacking, and the practical mitigations teams need now.
The post Updating the taxonomy of failure modes in agentic AI systems: What a year of red teaming taught us appeared first on Microsoft Security Blog. READ MORE HERE…
Discover how Microsoft enables fast, secure AI development with MDASH and new security capabilities.
The post Microsoft Build 2026: Securing code, agents, and models across the development lifecycle appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft Security’s latest updates extend visibility, control, and protection across expanding ecosystems as organizations accelerate AI adoption.
The post What’s new in Microsoft Security: May 2026 appeared first on Microsoft Security Blog. READ MORE HERE…
Read how to protect consumer websites and defend against modern DDoS attacks with layered security, resilient architecture, and graceful service degradation.
The post Defending consumer web properties against modern DDoS attacks appeared first on Microsoft Security Blog. READ MORE HERE…
This World Passkey Day, read how Microsoft is advancing passkey adoption to replace passwords, cut phishing risk, and deliver simpler, more secure sign-ins.
The post World Passkey Day: Advancing passwordless authentication appeared first on Microsoft Security Blog. READ MORE HERE…
Embracing strong proactive security is something we can all do to mitigate our increased exposure to security threats.
The post 8 best practices for CISOs conducting risk reviews appeared first on Microsoft Security Blog. READ MORE HERE…
Read how Microsoft is partnering with Anthropic and broader industry to use leading models, paired with our platforms and expertise, to turn AI-driven discovery into protection at scale.
The post AI-powered defense for an AI-accelerated threat landscape appeared first on Microsoft Security Blog. READ MORE HERE…
How Microsoft secures Dynamics 365 and Power Platform by removing credentials, reducing attack surfaces, and using platform engineering to block opportunistic threats.
The post Making opportunistic cyberattacks harder by design appeared first on Microsoft Security Blog. READ MORE HERE…
Threat actors are abusing external Microsoft Teams collaboration to impersonate IT helpdesk staff and convince users to grant remote access. Once inside, attackers can abuse legitimate tools and standard admin protocols to move laterally and exfiltrate data while appearing as routine IT support—activity Microsoft Defender helps detect across Teams, endpoint, and identity telemetry.
The post Cross‑tenant helpdesk impersonation to data exfiltration: A human-operated intrusion playbook appeared first on Microsoft Security Blog. READ MORE HERE…