Data diddling (also called false data entry) is
|“||[t]he unauthorized changing of data before or during their input to a computer system. Examples are forging or counterfeiting documents and ex- changing valid computer tapes or cards with prepared replacements.||”|
"Examples of data diddling are forging, misrepresenting, to counterfeiting documents; exchanging valid computer tapes or disks with prepared replacements; keyboard entry falsifications; failure to enter data; and neutralizing or avoiding controls."
- Computer Crime: Criminal Justice Resource Manual, Glossary of Technical Terms, at xiv.