I noticed a folder today and two files in my wp-content folder today.
The folder is named upgrade and the files are named wpupdate* where * = a string of numbers and letters.
As the files are not on my local machine and apparently didn't come with the WP download, I was wondering if they're supposed to be there or if this is perhaps an indication of a security breach on my site.
I couldn't find anything in the forums or the codex, so any help is appreciated.