direct send exploit

  1. Microsoft 365 Direct Send Phishing: How Attackers Impersonate Internal Users & How to Protect Your Organization

    A new wave of targeted phishing attacks is sweeping through organizations, exploiting a legitimate Microsoft 365 feature to wreak havoc from inside the trusted walls of enterprise email. Security researchers have recently uncovered threat actors using the Microsoft 365 “Direct Send” capability...
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    • Forum: Windows News

  2. Protecting Microsoft 365 from Direct Send Email Phishing Attacks

    For many organizations, the expectation is that internal communications on their Microsoft 365 tenants are inherently more trustworthy—after all, who would question an authentication-free email from the company’s own domain? Yet a recent investigation by the Varonis Managed Data Detection and...
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    • Forum: Windows News

  3. Mitigating Phishing Risks in Microsoft 365: Addressing the Threat of Direct Send Abuse

    In a sobering development for the cloud security landscape, new research has exposed how Microsoft 365’s Direct Send feature—a tool primarily designed for seamless internal communication—has become a significant vector for phishing attacks. As organizations of all sizes deepen their reliance on...
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    • Forum: Windows News

  4. Protecting Your Organization from Microsoft 365 Direct Send Phishing Attacks

    Phishing attacks continue to challenge organizations worldwide, evolving in sophistication and leveraging the very tools designed to enhance digital communication. An alarming new campaign has emerged wherein cybercriminals exploit Microsoft 365’s Direct Send feature—traditionally trusted for...
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    • Forum: Windows News

  5. How Microsoft 365 Direct Send Exploitation Leads to Sophisticated Phishing Attacks

    In recent months, a sophisticated phishing campaign has exploited Microsoft 365's Direct Send feature, targeting over 70 organizations across the United States. This attack method allows cybercriminals to impersonate internal users and deliver phishing emails that bypass traditional security...
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    • Forum: Windows News

  6. Securing Microsoft 365 Against Phishing Exploiting Direct Send Vulnerability

    A sophisticated phishing campaign has been exploiting Microsoft 365's Direct Send feature, targeting over 70 organizations across various sectors in the United States since May 2025. This attack underscores the evolving tactics of cybercriminals and highlights the need for organizations to...
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    • Forum: Windows News

  7. Mitigating the Microsoft 365 Direct Send Phishing Attack: A Comprehensive Guide

    Microsoft 365 tenants across the United States have recently become the focal point of a sophisticated, widespread phishing campaign that leverages a rarely-discussed but highly impactful vulnerability in Exchange Online’s Direct Send feature. Security researchers have confirmed that, since May...
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    • Forum: Windows News