Our security standards are based on the standards of WordPress, which is widely considered to be a very secure way of verifying users via their credentials, and permitting those users to access resources based on their assignments. You can find more information regarding WordPress security here:http://codex.wordpress.org/Hardening_WordPress

 

You can use an SSL with WP-Client with no issues, and it will increase security of the traffic moving between your servers and your client's local environment.

 

WP-Client does not, however, claim to adhere to any set of standards (such as HIPAA, GLBA, etc) imposed by regulatory agencies or government bodies.