"This Connection Is Not Private” in older versions of MacOS
Are you receiving an error message saying “This connection is not private” when you’re trying to access a website in Safari on your Mac? Many users have seen this error at some point as they browse the web.
This error might have begun popping up more frequently for you lately, as one of the security certificates issued in older versions of macOS has expired, effective September of 2021.
The issue is obvious, if quite frustrating. You try to visit to an affected website using Safari, only to be informed that "This Connection Is Not Private". That error message means that Safari tried to connect using HTTPS, and has detected a certificate problem. It may appear sporadic, although once it has affected a site, Safari is unlikely to be able to make that connection properly again.
How do I fix it?
The solution to this issue is quite straightforward. It's time upgrade your Mac! No, you don't have to shell out to buy a new one, but it is time to upgrade to a newer version of the operating system that isn't affected by this issue.
First thing's first, make sure your Mac can handle the new software. You can check compatibility for High Sierra here. Once you've verified that you're eligible for the update, you can download the new OS here.
Before making any significant changes to your Mac, we highly recommend performing a Time Machine backup. This will ensure that all of your information is safe, in case something doesn't go as expected. You will need an external storage device to perform a backup.
If you aren't comfortable performing the back up or upgrade on your own, let us know, and we'll help you get your issues resolved.