Why does my web browser tell me this website is not secure?

This refers a specific type of security, SSL (Secure Sockets Layer). This is needed for e-commerce sites or any site that collects and/or stores sensitive information such credit card, bank account and/or social security numbers. SSL certificates require the payment of annual fees.

Most websites, including this one, do not need this kind of security. This website does NOT collect, possess or store anyone's personal or financial information or even users' names. Hummer Network Forums and Hummer Marketplace users have passwords, but those are encrypted for security. Not even an administrator can retrieve passwords.

The Hummer Network operates its own servers and has taken extensive steps to ensure that they are safe and secure. There has never been a data breach. We don't even sell the Hummer Calendar directly (we use PayPal and never ask for credit card numbers).

The "Not Secure" statement is false and misleading in this case.

A huge corporation has flagged 2/3 of the web as "not secure". It even goes so far as putting a statement like "This site may be hacked" in search results. This favors richer sites and discriminates against smaller ones. They may see it as improving internet security, but it could be seen as trying to dictate the internet, bullying or even borderline extortion as it requires payment of money solely to avoid negative consequences perpetrated by more a powerful entity. It also goes way beyond the scope of web browsers and seach engines which should not be passing judgement on web sites or favoring some while discriminating against others.