To make the web more secure, Google is marking websites ‘unsafe’ that have forms and no SSL Certificate. This is more often than not, a simple contact form.
A SSL Certificate allows the website to encrypt the data sent through the form. So if someone happens to intercept the data, it will be unreadable.
Websites with SSL Certificates web address starts with https:// as opposed to http://
The good news is, a good hosting company can provide you with a free, good quality SSL Certificate. This is enough if you need to cover a few basic forms.
If you have a WordPress website and need an upgrade to an SSL Certificate, give Webtree a call.