The past few days I've been modifying the theme to my web site to include AdSense. The Home Page was the last thing to be modified.
When index.php was uploaded, I went to the site to check it. Surprisingly, the site has reverted to the default WordPress theme--the one that displays when you first install it.
Could this be a joke by a hacker just to say "I was here"? Or did something mess during the redesign that caused WordPress to drop into preservation mode and revert to the default theme?