Google Chrome suddenly says the site is not secure

You are seeing a message in Google Chrome that the information you are about to submit for a website is not secure. The error goes like this:

The information you’re about to submit is not secure

Because this site is using a connection that’s not completely secure, your information will be visible to others.

Send anyway   Go back

You are seeing this because there is a minor security issue with the website. Most modern browsers not only require a valid certificate for the website issued from a trusted Certificate Authority but they also require all the internal links, images, scripts etc to also be secure. In addition to all that, this new notice is likely due to the website having a web form that is not using a secure connection to submit the form data.

Most web form data submissions are internal either to the same server that the website is hosted on to be processed by a server side script or to another internal server behind the same firewall on the same LAN or virtual LAN. However, it is now best practice that all of these be secure and Google will now notify end users when they are not.

So long as the certificate is valid and the IP address of the site matches the actual IP for the site, you are probably okay. I say probably because ultimately, it is the webmaster’s responsibility on securing that data and whenever you submit a form online, you are releasing control of that data to whatever is processing it on the other end.

HTTP is a dead horse. Long live HTTPS!