NOTE:  Directories should be set to  755 and file should be set to 644

WP Security Scan checks your WordPress website/blog for security vulnerabilities and suggests corrective actions such as:

1. Passwords
2. File permissions
3. Database security
4. Version hiding
5. WordPress admin protection/security
6. Removes WP Generator META tag from core code

Requirements

• WordPress version 2.6 and higher (tested at 3.1)
• PHP5 (tested with PHP Interpreter >= 5.2.9)

For more information on the WP Security Scan and other WordPress security news, visit the WebsiteDefender Blog and join our Facebook page. Post any questions or feedback on the WP Security Scan plugin forum.

Link:  wordpress.org/extend/plugins/wp-security-scan/