I am using 2.8.2 with slightly modified Fluid Blue theme. Still in development mode, so I haven't worried about security to much.
This morning, a mystery "WE DID 0 QUERIES" started showing up at the top of my footer. After reviewing the "View Source", it appears to be getting added before the footer processes.
I can't find anything resembling this phrase in any of my files or database tables (could it be a feed has been injected).
A web search on "WE DID 0 QUERIES" came up with a couple of other sites with the exact same thing.
An "Upgrade" folder suddenly appeared in my wp_content tree and it looks like someone may have looked at my .htaccess
Other than upgrading to 2.8.4...any ideas?