McAfee Secure is a good service to gain more trust from users

“McAfee Secure” is a good service that is recognized by users as a trusted source so its a great way to build more trust with your customers.

Although the plugin is not really needed if you know what you doing because McAfee provides direct code also which is faster than the plugin option. But the plugin is a very good option for the WordPress users that do not have much or less technical knowledge.