Top 5 free wordpress security plugins.
There are the top wordpress security plugins that i found good for your wordpress blog or site.
Wp security audit: https://wordpress.org/plugins/wp-security-
Acunetix wp security : https://wordpress.org/plugins/wp-security-scan/
Google authenticator: https://wordpress.org/plugins/google-authenticator/
All in one wp security and firewall: https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/
wp captcha free: https://wordpress.org/plugins/wp-captcha-free/