The green padlock simply means that traffic to and from the website is encrypted. The only thing you can actually be sure of when you see such a padlock is that your computer is connected to the site that you see in the address bar. Over a million new phishing sites surface every month. Malwarebytes blocks known phishing and other malicious sites can be based on blacklisting and behavioral analysis. Some websites can be blacklisted based on behavioral analysis and blacklisting, such as blacklisting.”]
Source: https://blog.malwarebytes.com/101/2018/05/https-why-the-green-padlock-is-not-enough/