I know this can get quite technical, but really it’s not that crazy hard to work through.
Alright, so hacker defaced your home page.
It is likely hacker replaced or removed some pages, so call your host and request they recover your site from backup first.
Then, once backup recovery completed, log into your control panel and change your:
– control panel password
– website FTP password
– password to all email accounts
If not sure how, just call the host and have them walk you through each.
If no backup, then you could always start over and use this a lesson to remember to keep a backup of your website at least every few months in future, and/or use one of the many free daily backup plugins to do so.
Sadly, there is no quick and easy to fix for a hacked website situation. A hacked site will require someone go through every file, clear out the hacks, and ensure all is locked down nicely to help prevent your site from being hacked again.