Technical articles from Microsoft’s official blogs of in-depth discussions of security, cybersecurity and technology trends affecting trust in computing. This includes timely security news, trends, and best practices.
In this article AI is driving a fundamental shift in how work gets done and how applications are built. As the 2026 Microsoft Work Trend Index Report highlights, a growing share of workers are moving beyond asking questions to handing off entire tasks and orchestrating multi-agent systems. This shift introduces a new constraint. The challenge […]
Microsoft has identified an active supply chain attack targeting the @antv node package manager (npm) package ecosystem. A threat actor compromised an @antv maintainer account and published malicious versions of widely used data-visualization packages, resulting in cascading downstream impact. The compromise propagated through dependency chains into libraries like echarts-for-react (which has more than 1 million
Mini Shai Hulud: Compromised @antv npm packages enable CI/CD credential theft Continue Reading
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 this article, Aaron Zollman, Vice President and
In this article The AI systems shipping inside enterprises today are fundamentally different from the ones we were building even two years ago, because they have moved well past answering questions and into accessing your email, retrieving records from your CRM, writing and executing code, and taking actions on your behalf across dozens of connected
In this article Microsoft Threat Intelligence recently uncovered a methodical, sophisticated, and multi-layered attack, where a threat actor we track as Storm-2949 launched a relentless campaign with a singular focus: to exfiltrate as much sensitive data from a target organization’s high-value assets as possible. The attack exfiltrated data from Microsoft 365 applications, file-hosting services, and
How Storm-2949 turned a compromised identity into a cloud-wide breach Continue Reading
AI is rapidly reshaping how work gets done in companies and organizations. In celebrating National Small Business Month, we want to acknowledge the unique challenges that growing business leaders face as AI creates both opportunity and risk. They face constant tradeoffs between moving fast, managing risk, and keeping operations stable under pressure. At the same
How to better protect your growing business in an AI-powered world Continue Reading
Designing Secure Autonomous AI Agents with Defense in Depth AI agents are moving beyond assistance and into action. Instead of generating content, they invoke tools, modify data, trigger workflows, and operate across systems with increasing autonomy. This shift changes the security problem fundamentally. When an agent can act autonomously, mistakes propagate faster, blast radius increases,
In this article Kazuar, a sophisticated malware family attributed to the Russian state actor Secret Blizzard, has been under constant development for years and continues to evolve in support of espionage-focused operations. Over time, Kazuar has expanded from a relatively traditional backdoor into a highly modular peer-to-peer (P2P) botnet ecosystem designed to enable persistent, covert
In this article AI and agentic application deployments on cloud-native platforms are increasing, and they often prioritize speed over secure configuration. Our observations from aggregated and anonymized Microsoft Defender for Cloud signals showed cases where AI services were publicly exposed with weak or missing authentication, creating exploitable misconfigurations that attackers actively abused. These issues enabled
In this article Logs and telemetry are the foundation of modern cybersecurity. They enable threat detection, incident response, forensic investigation, and compliance across endpoints, networks, and cloud environments. Yet, despite their importance, high‑quality security attack logs are notoriously difficult to collect, especially at scale. Real‑world security telemetry is often composed of repeated benign activity occurring across environments and with very rare malicious activity. Gathering, labeling, and maintaining datasets with real attack logs is costly and operationally challenging.
