Dear,
Please check your mail box.
If your site hacked:
First of all make a back up of your current site, so you'll be sure not to delete important files. We recommend you to do following steps:
1. If you have a back up, return to safe version of your website.
2. Compare Joomla and your website to find malicious files. For this
unzip your clean Joomla version to folder for example
"path_to_clean_joomla_version" and run console command:
diff -rq path_to_clean_joomla_version path_to_your_site_root_folder
And check all new or different files.
3. With help Apache, create and add on your site administration -
password access file
4. With help of sh404sef component( you need install it on your site ) turn on Security
5. Check google analitics, They very ofthen show, if they see some site hacked.
6. Also you can check steps that described in Joomla docs:
docs.joomla.org/Security_Checklist/You_h...en_hacked_or_defaced
Andrew
OrdaSoft team