Logitech users on macOS found themselves locked out of their mouse customizations yesterday after the company let a security ...

Millions of players found themselves unexpectedly being shut out of the League of Legends. What started like a login failure now seems to have escalated to a global server issue. It brought a halt to ...

You visit a client or other website and, instead of the site itself, you encounter a security certificate error. If you are using Windows and Internet Explorer, the ...

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 ...

The name on the security certificate is invalid or does not match the name of the target site webmail.domain.com. Outlook is unable to connect to the proxy Server ...

So, if an antivirus program or a network is intercepting a connection with a security certificate issued by a CA that is not in the Mozilla CA store, the connection is considered unsafe.