With undetected vandalism, editors may make edits without realizing the vandalism occurred, and this can make it harder to detect and delete the vandalism, which is now hidden amongst other edits.
Editors may make edits without. This is with undetected vandalism. Editors were realizing the vandalism occurred. This was with undetected vandalism. This can make it harder to detect and delete the vandalism. This is with undetected vandalism. The vandalism is now hidden amongst other edits.