If you see a 'Not Secure'' warning while browsing with Safari
Safari warns you when a website that you're visiting isn't secure.
In any of these cases, you may see a “Not Secure” or “Website Not Secure” message in Safari:
The website is encrypted, but its certificate is expired or illegitimate.
The website's certificate is valid but the version of TLS is not secure (TLS version 1.1 or earlier).
The website is unencrypted and asking you to enter password or credit card information.
Never enter your password or credit card number on sites with this warning. If you need to use the site, contact its owner or administrator and let them know that their site isn't secure.
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