A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant. Related Posts: BlueMoon Exploit Kit Chains Chrome and Windows Zero-Days Trojanized Fake macOS Installers Spread OtterCookie Backdoor Attackers Use AI Tools to Hit Latin American Orgs The post Microsoft 365 RejectDirectSend Bypass Lets Attackers Spoof Internal Emails appeared first on Daily CyberSecurity.