All news with #microsoft sentinel tag

🔎 Microsoft reported that some users experienced search failures across Microsoft 365 services including Outlook on the web, Outlook desktop, SharePoint Online, and OneDrive. An internal incident (MO1456424) traced the problem to a recent deployment that caused resource utilization inefficiencies on affected infrastructure. Microsoft said it developed and deployed a fix to reduce resource pressure and restore service for impacted users. The company has not disclosed which regions were affected but categorized the event as an incident.

🛡️ Microsoft revealed Project Perception, MAI-Cyber-1-Flash and several AI security initiatives during a July 27 Security launch preview. Project Perception uses coordinated red, blue and green agents to identify, triage and remediate threats, and will enter Preview on August 3. The company also introduced the MAI-Cyber-1-Flash model integrated into MDASH, plus the FORGE Lab and the External Red Team Alliance to accelerate offensive research and broaden AI safety efforts.

🛡️ Microsoft introduces Project Perception, an agentic security system designed for AI-era threats. It combines signals, context, models and specialized agents to continuously perceive, reason and act at machine speed while keeping humans in control. The system uses a multi-model architecture to optimize for quality and cost, beginning with software vulnerability management using MAI-Cyber-1-Flash in MDASH. Project Perception enters public preview on August 3.

🔒 This update summarizes June 2026 releases across Microsoft Security that strengthen identity, multicloud, data, and developer protections. Highlights include codename MDASH for multi-model agentic vulnerability scanning, expanded Microsoft Defender agent and MCP detection, GA for Microsoft Entra Backup and Recovery, and extended database threat protection for AWS RDS. New reporting, multicloud coverage, and a unified identity risk score help teams detect, prioritize, and recover faster.

🔒 Microsoft outlines a defense-in-depth approach to protect AI memory across storage, retrieval, model interaction, and user control. The post explains how memory transforms AI from stateless tool to learning collaborator, increasing attack surface and enabling staged attacks that persist beyond initial prompts. It summarizes protections in M365 Copilot including prompt-injection classifiers, Task Adherence checks, tenant policy controls, unified compliance, and audit logging integrated with Defender and Sentinel.

🛡️ This article highlights how St. Luke’s University Health Network and ManpowerGroup modernized security to enable AI-powered operations. It describes how both organizations unified visibility across cloud, identity, endpoint, and email by adopting Microsoft Security Copilot, Microsoft Defender, and Microsoft Sentinel, and how automation reduced noise and accelerated response. The piece frames security as a strategic enabler for scaling AI responsibly under Zero Trust and governance principles.

🤖 Enterprises migrating between SIEM platforms face repetitive, error-prone rule rewrites because vendors like Splunk, Microsoft Sentinel, IBM QRadar, and Google Chronicle use distinct query languages and data models. Researchers from the National University of Singapore propose ARuleCon, an AI-assisted framework that translates rules while preserving detection intent. In tests on nearly 1,500 conversions it improved accuracy about 10–15% over baseline LLM approaches. Practitioners caution that deterministic engineering, robust validation, and human oversight remain essential to avoid semantic drift and operational risk.

🔒 Microsoft was named an Overall Leader and Market Leader in KuppingerCole Analysts’ 2026 Emerging AI Security Operations Center (SOC) report. The research highlights a shift from static playbooks to intelligence‑driven automation that augments analyst decision‑making and scales operations. Microsoft cites capabilities such as Microsoft Sentinel enhancements, automatic attack disruption, a phishing triage agent, AI‑powered incident prioritization, and integration with Microsoft Security Copilot to accelerate response and reduce analyst burden.

🔍 Microsoft has expanded Microsoft Sentinel UEBA to ingest and enrich AWS CloudTrail alongside other cloud and identity sources, enabling behavioral anomaly detection across hybrid environments from a single pane. The solution delivers precomputed binary behavioral features and machine‑driven anomalies into the BehaviorAnalytics and Anomalies tables, letting analysts stack simple true/false signals such as first‑time geography, uncommon ISP, unusual action, and high operation volume. By shifting baseline management to UEBA, teams reduce heavy KQL baselines, accelerate triage, and surface low‑and‑slow or blended attacker behavior.

🔎 Amazon CloudWatch Logs Insights saved queries now accept parameters, enabling reusable query templates with placeholders for values such as log level, service name, or time interval. You can define up to 20 parameters with optional defaults and invoke parameterized queries by prefixing the saved query name with $ and supplying arguments. This reduces duplicate queries and simplifies complex analysis. Saved queries with parameters are available in all commercial AWS regions and can be created or executed via the Console, AWS CLI, AWS CDK, and AWS SDKs.

🔒 This guide helps security teams evaluate and select a Security Information and Event Management (SIEM) solution by outlining key selection criteria and practical trade-offs. It covers operational models (SaaS vs on-premises), analytics and AI/ML capabilities, log collection and parsing, alerting and role-based access, compliance requirements and ecosystem integrations. The guide also discusses pricing models and highlights vendors such as Splunk, Microsoft Sentinel and IBM QRadar to help start vendor research and pilot selection.

🔍 The Strategic SIEM Buyer’s Guide recommends that security leaders replace fragmented toolchains with a unified, cloud‑native platform that makes it inexpensive to ingest and retain telemetry, automatically shapes data into analysis‑ready form, and enriches it with graph‑driven intelligence. It highlights accelerating detection and response through real‑time correlation, automated investigation, and adaptive orchestration so analysts and AI can act faster. The guide also stresses rapid time‑to‑value via prebuilt connectors and turnkey content, and cites Microsoft Sentinel as an example of an AI‑ready end‑to‑end platform.

🔒 Microsoft’s new e-book, "3 reasons point solutions are holding you back", argues that fragmented security tools increase costs, slow investigations, and limit AI effectiveness. It advocates a unified, AI-ready security platform that consolidates telemetry, analytics, and automation across detection, response, exposure management, and cloud security. Learn how Microsoft Defender, Microsoft Sentinel, and Microsoft Security Copilot combine to improve MTTR, predictive defense, and operational efficiency.

🛡️ Microsoft Defender Experts outlines how autonomous AI agents are transforming Security Operations Centers by automating repetitive triage and amplifying analyst impact. Built with expert-defined guardrails, curated test sets, and human-in-the-loop validation, these agents already process about 75% of phishing and malware cases and help resolve incidents nearly 72% faster. The program emphasizes human governance, auditability, and iterative rollout through dark-mode evaluation and pilot partnerships.

🛡️ At Microsoft Ignite 2025, Microsoft set out an ambient, autonomous security approach for the emerging agentic era and announced a suite of tools to observe, secure, and govern AI agents and apps. The centerpiece is Microsoft Agent 365, a control plane providing an Entra-based registry, access controls, visualization, and integrations with Defender, Entra, and Purview to detect prompt-injection, prevent leakage, and enable auditing. Microsoft also expanded platform protections, enhanced Copilot data controls in Purview, and positioned Microsoft Sentinel and Security Copilot as agentic security pillars for detection and response.

🔐 Microsoft Security Store, released to public preview on September 30, 2025, is a unified, AI-powered marketplace that lets organizations discover, buy, and deploy vetted security solutions and AI agents. Catalog items — organized by frameworks like NIST and by integration with products such as Microsoft Defender, Sentinel, Entra, and Purview — address threat protection, identity, compliance, and cloud security. Built on the Microsoft Marketplace, it provides unified billing, MACC eligibility, and guided automated provisioning to streamline deployments.

🔒 Microsoft has been recognized as a Leader in the 2025 Gartner® Magic Quadrant for Security Information and Event Management (SIEM). The announcement highlights Microsoft Sentinel as a cloud- and AI-powered SIEM that centralizes security data via a purpose-built data lake and supports agentic AI through the Model Context Protocol (MCP) server. The platform emphasizes cost optimization, SOC automation, and integrated SOAR, UEBA, and threat intelligence to accelerate detection and response.

🔒 Microsoft Ignite 2025 highlights security-focused sessions and hands-on labs tailored for practitioners and leaders. Join in San Francisco Nov 17–21 (or online Nov 18–20) for briefings, demos, and instructor-led labs covering Microsoft Security Copilot, Sentinel, Defender, Entra, and Purview. A Security Forum (Nov 17) and keynote segments led by senior security executives will explore designing, governing, and protecting agentic AI across the lifecycle.

🔒 Microsoft announced major AI upgrades for Sentinel SIEM and Security Copilot, positioning them as agentic platforms. The update makes Sentinel data lake generally available and introduces public-preview releases of Sentinel graph and the Sentinel Model Context Protocol (MCP) Server so AI agents can access and act on SIEM data. Customers can now build custom agents with natural‑language prompts and discover third‑party agents via a revamped store. Microsoft positions agents to automate investigation and response but warns of increased noise, false positives and a new attack surface.

🔒 Microsoft announced the general availability of the Sentinel data lake and public previews of Sentinel Graph and the Sentinel Model Context Protocol (MCP) server. The release broadens Sentinel from a traditional SIEM into a unified, agentic security platform designed to ingest and correlate structured and semi-structured signals at scale. It is intended to give AI agents such as Security Copilot and developer tools in VS Code with GitHub Copilot richer contextual access for detection, retroactive hunting, and automated response while integrating with Defender and Purview.