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 fixed a known issue that prevented Microsoft 365 customers from opening encrypted emails in classic Outlook after a recent update.

Learn why encryption keys matter more than encryption itself when choosing the best secure email—covering key ownership, access control, privacy risks, and true end-to-end security.

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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 best email encryption software can prevent hackers from scraping your emails for company contracts, financial records, and workplace credentials.

Forbes reports that Microsoft complied with an FBI request for decryption keys to a suspect's personal laptops last year.