While browsing a website on Google Chrome, if you get an error saying This server could not prove that it is <domain.com>; its security certificate is not from <ABC ...

Websites generally have a security certificate which assures they will protect you and your information while you’re visiting their site. A “your connection is not private” message is your browser ...

This warning is displayed if there is s problem with the security certificate of the website, or if there are other security issues about it. When Firefox detects a potential threat, it displays ...