Security News

Live news from trusted publications, matched against DayBreach CVE data.

Microsoft Security Blog1 mo ago

Counterfeit installers to system compromise: Tracking a deceptive software download campaign

An active campaign is impersonating legitimate software vendors to deliver malware through look-alike download pages and regenerated installer archives. Microsoft Defender Experts shares observed attack techniques, Defender XDR detections, indicators of compromise, and practical mitigations to help organizations identify, block, and respond to this threat. The post Counterfeit installers to system compromise: Tracking a deceptive software download campaign appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

Cybersecurity IR Workshop: The workshop you shouldn’t miss

Cyber resilience starts before a crisis. Gain practical insights from DART to strengthen readiness and response. The post Cybersecurity IR Workshop: The workshop you shouldn’t miss appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

TerminalFix campaign deploys a reverse tunnel through multistage intrusion

Microsoft Threat Intelligence provides analysis of a ClickFix campaign that uses fake CAPTCHA prompts, DLL sideloading, and a reverse tunnel, with detections and hunting guidance. The post TerminalFix campaign deploys a reverse tunnel through multistage intrusion appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

​​​​​​What’s new in Microsoft Security: August 2026

This month’s updates provide new capabilities to help organizations gain insights into agent activity, expand security coverage across supported environments, and enhance security management across their environments. The post ​​​​​​What’s new in Microsoft Security: August 2026 appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

When AI infrastructure becomes the target: Securing gateways and control points

Microsoft Threat Intelligence examines attacks on exposed AI workloads, including LiteLLM gateway exploitation, credential harvesting, persistence, and cryptomining activity. The post When AI infrastructure becomes the target: Securing gateways and control points appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

Microsoft named a Leader in the Frost Radar™: Cloud Workload Protection Platforms, 2026

Microsoft is named a visionary leader in the 2026 Frost Radar for Cloud Workload Protection Platforms, recognized for unified runtime security with Microsoft Defender for Cloud. The post Microsoft named a Leader in the Frost Radar™: Cloud Workload Protection Platforms, 2026 appeared first on Microsoft Security Blog.

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Microsoft Security Blog1 mo ago

Hunting MacSync Stealer infrastructure through behavioral pivots

MacSync Stealer rapidly rotates domains to evade detection, but its behavior remains consistent. Learn how Microsoft uncovered 30+ related domains using durable hunting pivots. The post Hunting MacSync Stealer infrastructure through behavioral pivots appeared first on Microsoft Security Blog.

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Microsoft Security Blog2 mo ago

Microsoft named a Leader in the 2026 IDC MarketScape for MDR/MXDR for the Enterprise

Microsoft is named a Leader in the 2026 IDC MarketScape for MDR services. Discover how Microsoft Defender Experts MDR combines AI, threat intelligence, and human expertise. The post Microsoft named a Leader in the 2026 IDC MarketScape for MDR/MXDR for the Enterprise appeared first on Microsoft Security Blog.

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Microsoft Security Blog2 mo ago

DeadLock ransomware: Breaking down a Rust-based encryptor with decentralized recovery infrastructure

Microsoft Threat Intelligence examines DeadLock ransomware, an emerging financially motivated operation distinguished by its use of decentralized infrastructure to support victim communications, negotiations, and data leak operations alongside double extortion tactics used to pressure victims. The post DeadLock ransomware: Breaking down a Rust-based encryptor with decentralized recovery infrastructure appeared first on Microsoft Security Blog.

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