Burn-back
Referenced in the first draft script of the  seventh season episode , a burn-back was a computer method that could both disrupt all computer technology directly at the source of a data-sifter and identify that source.

In the aforementioned script, the first sign of a burn-back targeting the infirmary aboard space station Deep Space 9, where Julian Bashir and Miles O'Brien were running a data-sifter on the routing log of Starfleet Medical's main computer, was that the consoles in the infirmary suddenly started to fritz. O'Brien and Bashir managed to trace the burn-back to a computer in the Department of Cartography, at Federation Headquarters; the source of the burn-back had the screen name "W.G.", suggesting it was being run by Luther Sloan, using his "Wendell Greer" pseudonym, which he had used in the earlier episode . Bashir and O'Brien were able to determine this information just before the burn-back caused their consoles to short out.
Unused production material