I'm on PC and use Google Chrome browser. The "site information" button at the upper left of the browser, next to the URL field, has always shown "Not secure".
I don't know for sure, but doubt it's a problem because none of my antivirus software has ever objected.
According to Chrome online help, "Not secure" means:
The site isn't using a private connection. Someone might be able to see or change the information you send or get through this site.
On some sites, you can visit a more secure version of the page:
Select the address bar.
Delete http://, and enter https:// instead.
If that doesn't work, contact the site owner to ask that they secure the site and your data with HTTPS.
I just tried the https:// fix and it didn't work. Not going to bother Jim with the request.