18 Novembre 2025
​​Ambient and autonomous security for the agentic era​​ 

Over the past year, I’ve had countless conversations with customers who are striving to unlock human ambition with AI. They are on their journey to become Frontier Firms, where humans and agents push the boundaries of innovation and create new possibilities, empowering humans to become limitless. As agents[…]

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18 Novembre 2025
Agents built into your workflow: Get Security Copilot with Microsoft 365 E5

The cybersecurity landscape is at a historic inflection point. As cyberattackers wield AI to automate cyberattacks at extraordinary speed and scale, the challenge before us is not just to keep pace—but to leap ahead. There are over four million unfilled cybersecurity jobs, so depending solely on human resources[…]

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17 Novembre 2025
Collaborative research by Microsoft and NVIDIA on real-time immunity

AI-Powered Threats Demand AI-Powered Defense   While AI supports growth and innovation, it is also reshaping how organizations address faster, more adaptive security risks. AI-driven security threats, including “vibe-hacking”, are evolving faster than traditional defenses can adapt. Attackers can now combine reinforcement learning (RL) with LLM capabilities in code generation, tool use, and multi-step reasoning to create agents[…]

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10 Novembre 2025
​​Securing our future: November 2025 progress report on Microsoft’s Secure Future Initiative ​​ 

When we launched the Secure Future Initiative (SFI), our mission was clear: accelerate innovation, strengthen resilience, and lead the industry toward a safer digital future. Today, we’re sharing our latest progress report that reflects steady progress in every area and engineering pillar, underscoring our commitment to security above[…]

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10 Novembre 2025
​​Securing our future: November 2025 progress report on Microsoft’s Secure Future Initiative ​​ 

When we launched the Secure Future Initiative (SFI), our mission was clear: accelerate innovation, strengthen resilience, and lead the industry toward a safer digital future. Today, we’re sharing our latest progress report that reflects steady progress in every area and engineering pillar, underscoring our commitment to security above[…]

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7 Novembre 2025
​​Whisper Leak: A novel side-channel attack on remote language models

Microsoft has discovered a new type of side-channel attack on remote language models. This type of side-channel attack could allow a cyberattacker a position to observe your network traffic to conclude language model conversation topics, despite being end-to-end encrypted via Transport Layer Security (TLS). We have worked with multiple vendors to get the risk[…]

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6 Novembre 2025
New IDC research highlights a major cloud security shift

Cloud security is at a tipping point. While moving to the cloud powers both growth and speed for organizations, it can also bring new risks. According to IDC’s latest research, organizations experienced an average of nine cloud security incidents in 2024, with 89% reporting a year-over-year increase. That’s[…]

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5 Novembre 2025
​​Securing critical infrastructure: Why Europe’s risk-based regulations matter

The Deputy CISO blog series is where Microsoft  Deputy Chief Information Security Officers (CISOs) share their thoughts on what is most important in their respective domains. In this series, you will get practical advice, tactics to start (and stop) deploying, forward-looking commentary on where the industry is going, and more. In[…]

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4 Novembre 2025
​​Learn what generative AI can do for your security operations center

The busier security teams get, the harder it can be to understand the full impact of false positives, queue clutter, tool fragmentation, and more. But what is clear—it all adds up to increased fatigue and an increased potential to miss the cyberthreats that matter most. To help security[…]

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3 Novembre 2025
SesameOp: Novel backdoor uses OpenAI Assistants API for command and control

Microsoft Incident Response – Detection and Response Team (DART) researchers uncovered a new backdoor that is notable for its novel use of the OpenAI Assistants Application Programming Interface (API) as a mechanism for command-and-control (C2) communications. Instead of relying on more traditional methods, the threat actor behind this[…]

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