There's a portion of config-sample.php that's headed'Authentication Unique Keys.' You will find four explanations that appear within the block. A hyperlink is fix hacked wordpress database inside that part of code.You copy the contents that you return, must enter that link into your browser, and change. This makes it harder for attackers to create a'logged-in' dessert for your website.
No software system is immune to bugs and vulnerabilities. Security holes will be found and men will do their best to exploit them. Keeping your software up-to-date is a good way to stave off attacks, once security holes are found, because their products will be fixed by reliable software sellers.
In case you ever want to migrate your website elsewhere, like a new hosting company, you'd have the ability to pull this off without a hitch, and also without needing to disturb your old site this content until the new one was set up and ready to roll.
Can you view that folder Imagine if you go to WP-Content/plugins? If so, upload this blank Index.html file into that folder as well so people can not view what plugins you have. Because if your current version of WordPress is up to date, if you're using a plugin or an old plugin with a security hole, then someone can use that to get access.
Oh . And incidentally, I was talking about plugins. When you get a new plugin, make sure it's a secure one. Don't install any plugin because the owner is saying that plugin will help you do that or this. Maybe use get a software engineer to examine it, or maybe a test site to check the plugin. This way you'll know it is not a threat for you or your business.