From July 2018, Google Chrome will begin to mark all http:// sites as not secure due to the security risk such unencrypted sites can pose – https://www.theverge.com/2018/2/8/16991254/chrome-not-secure-marked-http-encryption-ssl
What is the difference between encrypted and unencrypted sites?
Http (Hyper Text Transfer Protocol) is the method by which data is moved around the web. If you look at the beginning of most web addresses, you can see whether a website uses this or the more secure version https (Hyper Text Transfer Protocol Secure).
The difference between the two is whether or not a website is secure in relation to data protection. All ecommerce, banking, login and payment pages should use https, which ensures data is encrypted before sending it through the web.
The way in which websites do this is through an SSL (Secure Sockets Layer) Certificate. These certificates contain encryption keys to encrypt the data in a way that is very hard to crack, therefore protecting very sensitive data.
How do you convert your website to https://
Converting your website to a secure https site is straightforward. You will need to purchase an SSL certificate, and install this on your websites hosting account. You will need to ensure any website links are changed to https so they are not broken after you switch, and ensure you set up 301 redirects from http to https so that any search engines are notified of the websites changes.
Most hosting companies should be able to assist you in this process, especially the technical side of it.
If you take any form of personal information from customers, it is best to ensure your website uses these SSL certificates to encrypt the data. This will protect both your customers and your business moving forward.