Security researchers at WithSecure, previously F-Secure Business, found that it is possible to partially or fully infer the contents of encrypted messages sent through Microsoft Office 365 due to the ...

Microsoft has confirmed a known issue that prevents recipients from opening encrypted emails in classic Outlook.

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Encrypted emails in Microsoft’s older email client—called “classic Outlook” as opposed to “new Outlook”—have once again ...

Researchers have discovered what they call a vulnerability in Microsoft 365, tied to the use of a broken or risky cryptographic algorithm. It could be exploited to infer some or all the content of ...

The problem happens for users who encrypt the email using the settings under the email File dialog (File > Encrypt), ...