Microsoft named a leader in the 2025 Gartner® Magic Quadrant™ for Email Security

We’re honored to share that Microsoft has been named a Leader in the 2025 Gartner® Magic Quadrant™ for Email Security. We believe this recognition highlights the value of Microsoft Defender for Office 365’s innovative capabilities in addressing today’s complex email security challenges. Protect...

Microsoft named a leader in the 2025 Gartner® Magic Quadrant™ for Email Security

We’re honored to share that Microsoft has been named a Leader in the 2025 Gartner® Magic Quadrant™ for Email Security. We believe this recognition highlights the value of Microsoft Defender for Office 365’s innovative capabilities in addressing today’s complex email security challenges. Protect...

Spy vs. spy: How GenAI is powering defenders and attackers

Generative AI GenAI is reshaping cybersecurity for both attackers and defenders, but its future capabilities are difficult to measure as techniques and models are evolving rapidly. Adversaries continue to use GenAI with varying levels of reliance. State-sponsored groups continue to take advantage...

MS Teams Guest Access Can Remove Defender Protection When Users Join External Tenants

Cybersecurity researchers have shed light on a cross-tenant blind spot that allows attackers to bypass Microsoft Defender for Office 365 protections via the guest access feature in Teams. "When users operate as guests in another tenant, their protections are determined entirely by that hosting...

Microsoft 365 Defender Portal XSS

The vulnerability of the Microsoft 365 Defender Portal exists due to the lack of measures taken to protect the website structure. Exploiting this vulnerability allows a malicious actor to carry out XSS attacks remotely...

Microsoft Teams Flaw in Guest Chat Exposes Users to Malware Attacks

New research from Ontinue exposes a major security flaw in Microsoft Teams B2B Guest Access. Learn how attackers bypass all Defender for Office 365 protections with a single invite...

CVE-2025-62459

Microsoft Defender Portal Spoofing Vulnerability...

EUVD-2025-198367

Microsoft Defender Portal Spoofing Vulnerability...

CVE-2025-62459

Microsoft Defender Portal Spoofing Vulnerability...

CVE-2025-62459 Microsoft Defender Portal Spoofing Vulnerability

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CVE-2025-62459

Microsoft Defender Portal Spoofing Vulnerability...

CVE-2025-62459

CVE-2025-62459 is a Microsoft Defender Portal vulnerability described as a portal spoofing issue that can enable UI spoofing (spoofed Defender Portal interactions). The connected sources identify the affected product as the Defender / 365 Defender Portal, with the vulnerability arising from a por...

CVE-2025-62459 Microsoft Defender Portal Spoofing Vulnerability

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Microsoft Defender Portal Spoofing Vulnerability

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Microsoft Defender Cross-Site Script Vulnerability

Microsoft Defender is a threat protection software from Microsoft Corporation USA. A cross-site scripting vulnerability exists in Microsoft Defender that stems from a portal spoofing vulnerability...

CVE-2025-62459: Improper Neutralization of Input During Web Page Generation

Microsoft Defender Portal Spoofing Vulnerability...

KLA90453 SUI vulnerability in Microsoft Windows

A spoofing vulnerability vulnerability was found in Microsoft Windows. Malicious users can exploit this vulnerability to spoof user interface. Original advisories CVE-2025-62459 Exploitation Related products Microsoft-365 CVE list CVE-2025-62459 high KB list Solution Install necessary updates fro...

PT-2025-47644

Name of the Vulnerable Software and Affected Versions Microsoft Defender Portal affected versions not specified Description A spoofing issue exists in the Microsoft Defender Portal. The vulnerability allows for potential unauthorized access or manipulation due to the spoofing mechanism...

​​Ambient and autonomous security for the agentic era​​

Over the past year, I've had countless conversations with customers who are striving to unlock human ambition with AI. They are on their journey to become Frontier Firms, where humans and agents push the boundaries of innovation and create new possibilities, empowering humans to become limitless...

​​Ambient and autonomous security for the agentic era​​

Over the past year, I've had countless conversations with customers who are striving to unlock human ambition with AI. They are on their journey to become Frontier Firms, where humans and agents push the boundaries of innovation and create new possibilities, empowering humans to become limitless...