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    Exposing the Hidden Threat of Microsoft 365's Direct Send Abuse in Internal Phishing Campaigns

    Leveraging trusted internal channels has long been a gold standard for cybercriminals seeking to evade organizational defenses, but a recent campaign uncovered by Proofpoint signals a new level of ingenuity in exploiting a familiar Microsoft 365 feature: Direct Send. This functionality, designed...
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    • attack techniques cloud security cybersecurity digital certificates email authentication email security email spoofing hybrid cloud security internal phishing microsoft 365 organizational trust phishing attacks security awareness security best practices security hardening security vulnerabilities smtp relay ssl certificates threat detection threat intelligence
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    • Forum: Windows News
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