File hosting services misused for identity phishing
Since mid-April 2024, Microsoft has observed an increase in defense evasion tactics used in campaigns abusing file hosting services like SharePoint, OneDrive, and Dropbox.
Microsoft Defender XDR
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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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Storm-0501: Ransomware attacks expanding to hybrid cloud environments
August 27, 2025 update: Storm-0501 has continuously evolved to achieve sharpened focus on cloud-based TTPs as their primary objective shifted from deploying on-premises endpoint ransomware to using cloud-based ransomware tactics. -
Microsoft is named a Leader in the 2024 Gartner® Magic Quadrant™ for Endpoint Protection Platforms
Gartner® names Microsoft a Leader in Endpoint Protection Platforms—a reflection, we believe, of our continued progress in helping organizations protect their endpoints against even the most sophisticated attacks, while driving continued efficiency for security operations center teams. -
Peach Sandstorm deploys new custom Tickler malware in long-running intelligence gathering operations
Between April and July 2024, Microsoft observed Iranian state-sponsored threat actor Peach Sandstorm deploying a new custom multi-stage backdoor, which we named Tickler. Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
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Microsoft again ranked number one in modern endpoint security market share
IDC Worldwide Corporate Endpoint Security Market Shares report for 2023 ranks Microsoft number one in market share with a 40. -
Chained for attack: OpenVPN vulnerabilities discovered leading to RCE and LPE
Microsoft researchers found multiple vulnerabilities in OpenVPN that could lead to an attack chain allowing remote code execution and local privilege escalation. -
Ransomware operators exploit ESXi hypervisor vulnerability for mass encryption
Microsoft Security researchers have observed a vulnerability used by various ransomware operators to get full administrative access to domain-joined ESXi hypervisors and encrypt the virtual machines running on them. -
Simplified Zero Trust security with the Microsoft Entra Suite and unified security operations platform, now generally available
Microsoft is announcing the Microsoft Entra Suite and the unified security operations platform, two innovations that simplify the implementation of your Zero Trust security strategy. Modernize your Security Operations Center with Microsoft Sentinel
Microsoft Sentinel is a cloud-native SIEM solution powered by AI and automation that delivers intelligent security analytics across your entire enterprise.
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Microsoft is named a leader in the Forrester Wave for XDR
Microsoft has been named a leader in The Forrester Wave™: Extended Detection and Response (XDR) platforms, Q2, 2024, and received the highest scores in both strategy and current offering categories, as well as in the market presence category. -
Moonstone Sleet emerges as new North Korean threat actor with new bag of tricks
Microsoft has identified a new North Korean threat actor, now tracked as Moonstone Sleet (formerly Storm-1789), that combines many tried-and-true techniques used by other North Korean threat actors, as well as unique attack methodologies to target companies for its financial and cyberespionage objectives. -
New capabilities to help you secure your AI transformation
Today, we’re thrilled to introduce new features for securing and governing in the age of AI. -
Analyzing Forest Blizzard’s custom post-compromise tool for exploiting CVE-2022-38028 to obtain credentials
Since 2019, Forest Blizzard has used a custom post-compromise tool to exploit a vulnerability in the Windows Print Spooler service that allows elevated permissions.
