I run a website on Joomla! 4. After updating my template (t4_bs5_blank) on May 17, 2024, and then again today, May 29, 2024, my web hosting company sent me automated emails warning me that their automated scans have detected malicious content in the file:
administrator/components/com_templates/tmpl/template/default_updated_files.php
They are asking me to "take action to remove the malicious code" and to change all of my passwords. I'm not sure what to do.