At some point during or after being brought to the Delta Quadrant, the missile Dreadnought sustained damage causing some files in its file directory to be missing. As a result, it mistakenly set out to attack Rakosa V. (VOY: "Dreadnought") Around 2372, the Klingon High Council instituted a security procedure in which the apparent main file directory on their ships contained false directories, files, and entire databases of disinformation designed for spies to steal. (DS9: "Sons of Mogh")