How to Update Certificates on Mac: Fixes for the September 30th Issue

If you’re a Mac user, you might have faced a problem recently. On September 30th, 2021, many websites stopped working on Macs. If you tried to access Wikipedia or other websites, you might have received a notification saying the site was not secure and the certificate was not valid or had expired. Fortunately, there’s a straightforward fix for this issue.

To update certificates on your Mac, you need to download a root certificate from your side. This will enable websites to work as they did before the certificate expired. Here are the steps you need to follow:

1. Go to this website and download the pem file.

2. Open the downloaded file and enter your admin password when prompted.

3. Go to the keychain and check if the certificate is already set up.

4. Open the certificate, and click “always trust” to mark it as trusted for all users.

Once you’ve completed these steps, the problem should be solved. Now you can access all websites without receiving an expired certificate warning.

In conclusion, the recent issue with certificate expiration on Macs is a straightforward problem to fix. By following these simple steps, you can update your certificates and avoid any future problems. If you found this article helpful, please share it with your friends and leave a comment.