American Banker says researchers showed that a message with no return address can slip past Reject Direct Send, Microsoft's setting for blocking external emails disguised as internal.
American Banker reports that researchers bypassed Reject Direct Send, a Microsoft setting released in 2025 to block external emails disguised as internal. The workaround uses a message with no return address, the publication says. It also notes that credit unions were told to close this kind of gap in 2021.
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American Banker says researchers showed that a message with no return address can slip past Reject Direct Send, Microsoft's setting for blocking external emails disguised as internal.
American Banker reports that researchers bypassed Reject Direct Send, a Microsoft setting released in 2025 to block external emails disguised as internal. The workaround uses a message with no return address, the publication says. It also notes that credit unions were told to close this kind of gap in 2021.
American Banker@AmerBanker.@Microsoft released a setting last year that blocks external emails that disguise themselves as internal. Researchers showed last week that a small workaround gets threat actors past it. https://sbrew.link/hVcTZVAk #Microsoft #Cybersecurity
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American Banker@AmerBanker.@Microsoft released a setting last year that blocks external emails that disguise themselves as internal. Researchers showed last week that a small workaround gets threat actors past it. https://sbrew.link/hVcTZVAk #Microsoft #Cybersecurity
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