The fix hacked wordpress database Codex has an outline of what permissions are acceptable. File and directory permissions can be changed either via an FTP client or within the page from the web host.
This is fantastic news because it means that there's a strong community of developers and users who can further improve the platform. However there's a big group there will always be people who will attempt to take them down.
Recently, the site of Reuters was murdered by an unknown hacker and posted a fake news article. Due to what the hacker did since Reuters is a popular news site, their reputation is ruined. If you don't pay attention on the security of your WordPress 20, Something similar may happen to you.
Now we're getting into matters specific to WordPress. You have to rename it to config.php and alter the file config-sample.php, when Extra resources you install WordPress. You need to set up the database facts there.
Change admin username and your WordPress password, or at least your password and collect and use other WordPress security tips to keep hackers out!