This is a full count and partial list of files on the server's local mounts that any user on the server can modify.
If this list includes log files, their integrity may have been compromised.
If this list includes executable files, malicious users with low levels of privilege may have changed files that have been executed by users with higher levels of permission. This is a method by which malicious users can change or access files without authorization or gain additional access. For more information, please see the man page for chmod.