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

While sending an email through the Outlook desktop app, if you see an error message saying Microsoft Outlook cannot sign or encrypt this message because there are no ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. First things first, although it is understandable to think ...

Microsoft is looking into a newly identified issue in classic Outlook that prevents users from opening certain encrypted ...

Microsoft is working to fix a DNS misconfiguration that is causing one-time passcode (OTP) message delivery failures in Exchange Online for some users. Recipients may receive a single-use access code ...