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    CVE-2025-54900: Excel Heap Overflow — Patch & Mitigations Guide

    Microsoft has published an advisory for CVE-2025-54900, a heap‑based buffer overflow in Microsoft Excel that can allow an attacker to execute code on a victim machine when a crafted spreadsheet is opened — an issue administrators and home users should treat as high priority for patching and...
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    • Forum: Security Alerts
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    Microsoft 365 to Block External Workbook Links for Enhanced Security in 2025

    For IT professionals, security administrators, and everyday users of Microsoft 365, workbook links have long represented a double-edged sword: a productivity enabler, but also a potential vector for significant risk. Microsoft’s latest announcement signals a pivotal shift in how these links will...
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    • Forum: Windows News
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    Microsoft’s Security Evolution: Blocking External Workbook Links in Excel for Enhanced Windows Protection

    Microsoft continues to reshape the security landscape for Windows users and administrators with a series of strategic changes to how its flagship productivity apps handle potentially risky content. A landmark update is scheduled to roll out between October 2025 and July 2026: Excel will disable...
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    • cyber threats cybersecurity data protection digital safety end user security excel security excel updates external links blocking file block policies it administration malware prevention microsoft office microsoft security office 365 security best practices security policy security risks threat mitigation workplace security
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    • Forum: Windows News
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    How to Enable and Use the Developer Tab in Excel for Power Automation

    Unlocking the full power of Microsoft Excel is easier than many users realize, and the key lies in a feature hidden in plain sight: the Developer tab. Whether you’re a data analyst, automation enthusiast, or small business owner, revealing this tab opens the door to a spectrum of advanced...
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    • developer tab excel excel automation excel customization excel features excel for mac excel for windows excel macros excel power user excel security excel security tips excel tips excel troubleshooting excel workflow macro recording microsoft excel office scripts spreadsheet automation vba scripting xml data
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    • Forum: Windows News
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    CVE-2025-30379 Explained: Microsoft Excel RCE Vulnerability & How to Protect Your System

    In the evolving landscape of cybersecurity threats facing users of core productivity applications, Microsoft Excel’s newly disclosed CVE-2025-30379 stands out as a particularly concerning remote code execution (RCE) vulnerability. This flaw highlights both the persistent risks endemic to complex...
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    • attack mitigation cve-2025-30379 cyber threats cybersecurity endpoint security excel security it security macro security malware protection microsoft excel microsoft office network security phishing attacks rce vulnerabilities remote code execution security best practices security vulnerability software patching vulnerability management zero trust
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    • Forum: Security Alerts
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    Excel April 2025 Update: AI, Python, Security & New Features for Enhanced Productivity

    Microsoft Excel has introduced a suite of new features in April 2025, enhancing user experience across Windows, Mac, and web platforms. These updates focus on integrating advanced technologies like AI and Python, improving usability, and bolstering security measures. Copilot Enhancements A...
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    • Forum: Windows News
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