Microsoft Teams will let admins block custom file extensions
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company's security requirements. [...]
Microsoft US
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Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts
Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. [...]
Microsoft US
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Proofpoint Expands AI-Powered Investigations to Microsoft 365 and Deepens Insider Risk Visibility into AI Activity
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Security Alert: Microsoft Releases September 2026 Security Updates
Microsoft JP
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Microsoft says Windows 11 KB5120998 update resets mouse settings
Microsoft has confirmed that mouse settings are being reverted on Windows 11 systems after installing the KB5120998 August 2026 non-security preview update. [...]
Microsoft US
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Windows 11 KB5120998 update released with 35 changes and fixes
Microsoft released the KB5120998 preview cumulative update for Windows 11 versions 25H2 and 24H2, which comes with 35 changes, including improvements to the Start menu, taskbar, and Windows search. [...]
Microsoft US
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What’s new in Microsoft Security: August 2026
As organizations incorporate AI agents into more processes across business and operations, security teams can benefit from greater visibility and new purpose-built tools that help manage, secure, and govern AI. 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. Here’s what’s new: Extend expert-led protection with new capabilities…
Microsoft US
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Advance Zero Trust for AI: New tools and guidance to secure AI agents and DevSecOps
The calculus of cybersecurity has changed. AI is reshaping how organizations build, deploy, operate, and defend digital systems. AI-powered development tools, agents, and autonomous workflows are accelerating innovation but they are also introducing new attack surfaces, new trust boundaries, and new security challenges. Microsoft has long helped organizations secure their digital estates using Zero Trust principles. That leadership was recently recognized by KuppingerCole analysts, which named…
Microsoft US
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What’s new in Microsoft Security: July 2026
Every organization needs security that protects end to end with the speed and scale of AI. Microsoft’s vision is simple: security should be ambient and autonomous, just like the AI it protects. As organizations scale AI and expand across environments, security teams need protection that covers every surface. This month’s updates help security and IT teams secure their AI environments, use AI to defend at speed and scale, and strengthen the foundations that AI-powered operations depend on.…
Microsoft US
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Stop rewriting detection rules by hand: automatic Sentinel-to-Elastic migration is here
Elastic automatically translates your Microsoft Sentinel detection rules into Elastic Security. Export your Scheduled and Near Real Time (NRT) analytics rules from Sentinel, upload them, and Elastic picks up the mapping and translation from there using an LLM you choose. Watchlists and severity mappings carry over. This is the first automatic migration path off a modern SIEM, available now in Tech Preview in 9.5, and it works across multiple cloud providers and regions so you can deploy closer…
Stop rewriting detection rules by hand: automatic Sentinel-to-Elastic migration is here
Elastic automatically translates your Microsoft Sentinel detection rules into Elastic Security. Export your Scheduled and Near Real Time (NRT) analytics rules from Sentinel, upload them, and Elastic picks up the mapping and translation from there using an LLM you choose. Watchlists and severity mappings carry over. This is the first automatic migration path off a modern SIEM, available now in Tech Preview in 9.5, and it works across multiple cloud providers and regions so you can deploy closer…
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METTLER TOLEDO: Microsoft cumulative patches until March for FreshWay B/D
[VDE-2026-066] This update deploys cumulative Microsoft Windows security patches through March 2026 for LTSB 2016, LTSC 2019, and LTSC 2021.
EPSS 0.01 CVE-2026-23673 CVE-2026-25171 CVE-2026-25172 CVE-2026-25174 CVE-2026-25175 CVE-2026-25179 CVE-2026-25181 CVE-2026-25185 CVE-2026-26111 CVE-2026-26128 METTLER TOLEDO Microsoft DE
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Azure AD Graph Activity Logs: Ingestion and threat detection to close the visibility gap
AAD Graph Activity Logs are now ingestible into Elastic and usable for threat detection within the SIEM/XDR solution. That sentence shouldn't be exciting, but it is. For most of the past decade, this slice of telemetry simply didn't exist as a customer-accessible log stream. Microsoft Graph Activity Logs (the modern graph.microsoft.com surface) went GA in April 2024. The legacy graph.windows.net surface, the one adversary tooling actually hits, stayed dark until early 2026. This post walks the…
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CI/CD pipeline abuse: the problem no one is watching
Preamble In 2025 and 2026, we watched a pattern play out across the industry. Attackers stopped going after production servers directly and started targeting the automation that deploys to them. Compromised developer credentials, a modified workflow file, and suddenly every secret in a CI/CD environment is streaming to an attacker-controlled endpoint. We saw this play out across incidents involving major open-source projects, Fortune 500 companies, and critical infrastructure tooling. The…