You can add a free SSL certificate to your WP Site. 

Before going forward know what an SSL certificate is? An SSL certificate is a digital certificate that authenticates a website’s identity and enables an encrypted connection. SSL stands for Secure Sockets Layer, a security protocol that creates an encrypted link between a web server and a web browser.

• Go to WordPress Dashboard > Plugin > Add New
• Download the Really Simple SSL plugin.
• Upload the plugin to the wp-content/plugins directory,
• Go to “plugins” in your WordPress admin, then click activate.
• You will now see a notice asking you to enable SSL.
• Click it and log in again
• Done! SSL (https) is now activated on your site.

Hope it will  help you!
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