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Certificate Renewal message for 2022

Good day,
Certificates allow you to access secure web services at MIT, such as Atlas and WebSIS, or to access any MIT certificate-protected site. Certificates obtained within the past year are set to expire on July 30, 2022.
To ensure continued access to these secured sites, please plan to renew your certificates on all desktop and mobile devices before the end of July. This renewal process is not automatic, and there are some steps you will need to take to get new ones.

Step One: Before obtaining your certificates

  • If your password is over one year old, you will be prompted to change it during the certificate renewal process. For more information and tips on how to choose a strong password, please see: Strong Passwords
  • Note: if your Windows computer is on the MIT domain and you are not on campus, please refer to this article about changing your password to make sure you will be able to log into your computer with your new password. (You are on the MIT domain if you see "Sign in to: ATHENA.MIT.EDU" at the bottom of the Windows logon screen.)
  • Have your Duo phone or device handy. The certificate installation process requires Duo two-factor authentication.

Step Two: Obtaining your certificates

Please note: If you use multiple machines and browsers, you will need to obtain a new certificate for each browser on each machine. For more information, see: Certificates at MIT.

Step Three: Deleting your expired certificates

  • It is recommended that, after installing your new certificates, you delete your expired ones. Failure to do so may cause problems accessing certificate-protected sites. Running CertAid will prompt you to delete expired certificates if any are detected. We encourage the MIT community to use CertAid where possible.
  • For more information, see: Deleting your expired certificates.

Note for users who encrypt email: Do not delete an expired certificate if you have used it to sign or receive encrypted email. For more information on what to do in that case, see the Export or Back Up Your MIT Personal Certificates page.
If you have any questions or concerns, please send an email to the IS&T Service Desk at or call us at 617-253-1101. You can also send us a request online.
A copy of this email is available at

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Documentation and information provided by IS&T staff members

Last Modified:

July 05, 2022

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