The secure.htaccess file is here: /bulletproof-security/admin/htaccess/secure.htaccess
The wp-admin htaccess file is here: /bulletproof-security/admin/htaccess/wpadmin-secure.htaccess
In the secure.htaccess file you will need to manually add your domain in this code below.
# TIMTHUMB FORBID RFI and MISC FILE SKIP/BYPASS RULE
# Use BPS Custom Code to modify/edit/change this code and to save it permanently.
# Remote File Inclusion (RFI) security rules
# Note: Only whitelist your additional domains or files if needed - do not whitelist hacker domains or files
RewriteCond %{QUERY_STRING} ^.*(http|https|ftp)(%3A|:)(%2F|/)(%2F|/)(w){0,3}.?(blogger|picasa|blogspot|tsunami|petapolitik|photobucket|imgur|imageshack|wordpress\.com|img\.youtube|tinypic\.com|upload\.wikimedia|kkc|start-thegame).*$ [NC,OR]
RewriteCond %{THE_REQUEST} ^.*(http|https|ftp)(%3A|:)(%2F|/)(%2F|/)(w){0,3}.?(blogger|picasa|blogspot|tsunami|petapolitik|photobucket|imgur|imageshack|wordpress\.com|img\.youtube|tinypic\.com|upload\.wikimedia|kkc|start-thegame).*$ [NC]
RewriteRule .* index.php [F]
#
# Example: Whitelist additional misc files: (example\.php|another-file\.php|phpthumb\.php|thumb\.php|thumbs\.php)
RewriteCond %{REQUEST_URI} (timthumb\.php|phpthumb\.php|thumb\.php|thumbs\.php) [NC]
# Example: Whitelist additional website domains: RewriteCond %{HTTP_REFERER} ^.*(YourWebsite.com|AnotherWebsite.com).*
RewriteCond %{HTTP_REFERER} ^.*augustolacerda.com.br.*
RewriteRule . - [S=1]