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Posey's Tips & Tricks
A real-world recovery scenario shows how immutable backups can provide long-term protection against silent data loss that falls outside the reach of typical retention policies.
01/14/2026
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News
Microsoft rang in 2026 with its biggest January Patch Tuesday rollout in four years, shipping fixes for 113 vulnerabilities across Windows, Office and other products
01/13/2026
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General availability of the new feature improves security posture by reducing exposure from predictable service URLs.
01/13/2026
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News
Microsoft has begun out new AI-powered incident prioritization capabilities in Microsoft Defender alongside an expanded suite of proactive incident response services, giving security teams more tools to prevent, detect and recover from cybersecurity threats.
01/09/2026
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New capability uses behavioral signals and AI to surface stealthy threats that evade traditional rule-based detection.
01/07/2026
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News
Microsoft closed out 2025 with its final Patch Tuesday release. This month's update fixes 56 vulnerabilities across Windows, Office and several other products, and includes three zero-day flaw fixes.
12/10/2025
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News
Microsoft is bringing advanced endpoint management capabilities from its Intune Suite directly into Microsoft 365 E3 and E5 subscriptions.
12/04/2025
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News
Microsoft is tightening security around its Entra ID sign-in process by blocking external script injection, a move that could force some orgs to rethink their browser extension strategies.
12/01/2025
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General Availability announced of MSP introducing a closed security model aligned towards zero-trust security principles.
11/20/2025
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News
At Ignite 2025, Microsoft doubled down on its Copilot strategy, announcing new agents and capabilities that bring deeper intelligence and automation to everyday workflows in Microsoft 365.
11/18/2025
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Microsoft Azure fends off largest known cloud DDoS attack, showcasing the platform’s scale and defense architecture.
11/18/2025
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News
In what may be the first publicly known case of a state-sponsored cyber-espionage campaign using a large language model, Anthropic reported that attackers linked to China leveraged its Claude Code AI to carry out intrusions against about 30 global organizations.
11/14/2025
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News
Microsoft's latest Patch Tuesday brings fixes for 63 security flaws spread across Windows, Office and several other Microsoft products, including one zero-day vulnerability.
11/12/2025
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Updated guide emphasizes authentication hardening, migration from end-of-life servers and zero-trust tenets for hybrid environments.
10/31/2025
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News
Microsoft is warning IT administrators about an increase in attacks aimed at Azure Blob Storage, saying threat actors are taking advantage of exposed credentials, weak access controls and misconfigurations to gain access to sensitive cloud data.
10/23/2025
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Posey's Tips & Tricks
A lightweight free utility gives Windows users an easy way to review and control system-level privacy settings without digging into the registry.
10/16/2025
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At Live! 360 Orlando, Microsoft MVP John O’Neill Sr. will explore how combining Security Copilot with Defender XDR is helping SOCs accelerate response times, improve accuracy and reduce analyst fatigue.
10/15/2025
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Posey's Tips & Tricks
Microsoft 365 administrators can fine-tune Defender's anti-phishing policies to determine how detected spoofed or impersonated messages are handled, from quarantine and deletion to user safety tips that flag suspicious senders.
10/14/2025
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News
Microsoft's latest Insider Preview, Build 26220.6772, introduces a significant policy change: removal of known workarounds to skip Microsoft Account setup during Windows 11 installation (OOBE).
10/08/2025
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Posey's Tips & Tricks
Microsoft 365 administrators can use built-in Defender for Office 365 tools to enable impersonation and domain protection, reducing phishing risks by identifying spoofed senders and untrusted domains.
10/08/2025
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Posey's Tips & Tricks
Microsoft 365 includes built-in tools to defend against phishing attempts that use domain and user impersonation, but administrators need to understand how these protections work to avoid unintended disruptions.
10/01/2025
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News
Microsoft has announced new capabilities in Microsoft Sentinel designed to support the use of autonomous AI agents in security operations.
09/30/2025
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Despite layers of security controls on corporate hardware, unmanaged devices remain a critical weak spot.
09/24/2025
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Posey's Tips & Tricks
Let's refine some of my earlier work to make things more efficient.
09/19/2025
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News
Microsoft reports that it has seized 338 domains tied to RaccoonO365, a phishing-as-a-service operation it described as one of the fastest-growing criminal platforms targeting its users.
09/19/2025