Microsoft Resolves Outlook Bug Affecting Access to Encrypted Emails
- Securityish
- Privacy & Personal Security
Quick Summary
Microsoft has addressed a bug that prevented Microsoft 365 users from opening encrypted emails in classic Outlook after a December update. This issue specifically affected emails encrypted with ‘Encrypt Only’ permissions, leading to unreadable message attachments. A fix is now available for users in the Beta Channel and will roll out to the Current Channel in February, with temporary workarounds provided for those unable to upgrade immediately.
The Securityish Brief
Microsoft has resolved a significant issue impacting Microsoft 365 customers using classic Outlook, which arose after a December update. Users were unable to open emails encrypted with ‘Encrypt Only’ permissions, resulting in the display of a message_v2.rpmsg attachment instead of the actual content. This bug was acknowledged by Microsoft three weeks ago, with a specific error message indicating that users needed to verify their credentials to view the emails.
The fix is currently available for customers in the Beta Channel and is set to roll out to the Current Channel (Build 19725.20000) and Current Channel Preview (Build 19725.20000) in February. Microsoft also provided two temporary workarounds for users who cannot upgrade immediately. One workaround involves senders using the Encrypt option under the Options ribbon instead of the File dialog, while the other requires reverting to a previous software build.
This incident highlights ongoing issues with classic Outlook, as Microsoft previously addressed various bugs, including those affecting email drag-and-drop functionality and CPU spikes while typing. Such persistent problems can disrupt users’ ability to manage their emails effectively, particularly for those relying on encrypted communications for sensitive information.
Practical Implications for Users
For everyday users and organizations, the inability to access encrypted emails can pose significant risks, especially if sensitive information is involved. Users should be aware of the importance of keeping their software updated to avoid similar issues in the future.
Organizations should also consider implementing training for employees on how to use encryption features correctly, as well as monitoring for any potential disruptions caused by software updates. This can help maintain communication security and ensure that employees can access necessary information without delays.
As Microsoft continues to address bugs in Outlook, users should remain vigilant about their email security practices and stay informed about updates that may affect their communication tools.
Key Takeaways
- Update your Outlook to the latest version to access the fix for the encrypted email bug.
- If you cannot update, use the temporary workaround by having senders use the Encrypt option under the Options ribbon.
- Monitor your email for any issues related to encrypted messages and verify your credentials if prompted.
- Consider training for your team on proper use of encryption features in Outlook.
- Stay informed about future updates from Microsoft that may affect your email functionality.
Key Terms & Concepts
- Encrypt Only: In this article, ‘Encrypt Only’ refers to a permission setting that allows emails to be encrypted without restricting actions like forwarding or copying.
- Microsoft 365: Microsoft 365 is a subscription service that provides access to Office applications and other productivity services through the cloud.
Read the original article here: https://www.bleepingcomputer.com/news/microsoft/microsoft-fixes-outlook-bug-blocking-access-to-encrypted-emails/
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