If you see a 'Not Secure' warning while browsing with Safari
Safari warns you when a website that you're visiting isn't secure. 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.
In any of these cases, you might see a "Not Secure" or "Website Not Secure" or "This Connection Is 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.
The website uses HTTP instead of HTTPS to transmit information to and from Safari.
Security settings for Safari can be found here:
Mac: Open Safari. From the Safari menu, choose Settings (or Preferences), then click Security.
iPhone, iPad: Open Settings, tap Apps, then tap Safari and scroll down to the Privacy & Security section.
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