Finally, fix hacked wordpress will also inform you that there's not any htaccess within the directory. You can place a.htaccess record into this directory if you want, and you can use it to manage usage of the wp-admin directory from Ip Address address or address range. Details of how you can do that are plentiful around the internet.
There are numerous ways to pull off this, and a lot involve re-establishing much more and databases and FTPing files, exporting and copying. Some of these are very complex, so it's important that you select the best one. Then you might want to look into using a plugin for WordPress backups, if you're not of the persuasion.
It's a WordPress plugin. They are drop dead simple to set up, have all the features you need for a job such as this, and are relatively cheap, especially when compared to having to employ someone to have this done for you.
You can extend view it now the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop etc.. I think you can use it and this plugin is a good choice.
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 he has a good point plugin simply because the owner is saying that plugin will help you do this or that. Use perhaps, or a test site to check the plugin get a software engineer to analyze it. This way you'll know it is not a threat for your organization or you.