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    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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    • cloud security credential harvesting cyber threat landscape cybersecurity direct send exploit email authentication email security email spoofing information security internal communication security malware distribution microsoft 365 phishing attacks phishing awareness security best practices social engineering spf dkim dmarc threat detection threat mitigation
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    • Forum: Windows News
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    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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    • advanced email threats cloud email defenses cloud security credential theft attacks cybersecurity awareness direct send exploit email authentication bypass email header analysis email phishing email spoofing microsoft 365 security microsoft 365 vulnerabilities phishing prevention phishing qr codes saas security risks security best practices security configuration spoofed internal emails
    • Replies: 0
    • Forum: Windows News
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    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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    • attack mitigation cyber defense cybersecurity threats direct send exploit email authentication email filtering email security email spoofing microsoft 365 security office 365 security phishing attacks phishing prevention qr code phishing risk management security awareness security best practices smart host vulnerabilities spf dkim dmarc threat intelligence zero trust security
    • Replies: 0
    • Forum: Windows News
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