I will email Henrik and ask him about this. I will post back here when I receive an answer.
I’ve written a little explanation below about insecure sites and the green padlock.
Anytime you visit a webpage, your internet browser (Chrome, Firefox et cetera) requests an SSL certificate. If the website has one, it tells the browser that it is genuinely that website and lets establish a secure encrypted connection. If this is successful a green padlock is displayed. This is important if usernames, passwords and other personal information is being exchanged. An unsecured connection means that there is no certificate and no secure encrypted connection has been established, Insecure sites can be exploited by hackers though a “man in the middle attack”, although that’s quite rare.
More information can be found here:
∙ Website - What is SSL?
∙ YouTube Video: Man in the Middle Attacks by Computerphile
Thank you for pointing this out, Csaba.