Definition of "Darth"

Consider the threat of an evil hacker, Darth, who can not only eavesdrop on your network connection but also alter the messages that are sent.

2000, David G. Messerschmitt, Understanding Networked Applications: A First Course (textbook), Morgan Kaufmann Publishers, page 400

[…] glaring malevolently across his desk at me in the manner that had earned him the nickname “Darth” among his elite cadre of audio penetration officers.

2000, Antonio J. Mendez, Malcolm McConnell, The Master of Disguise: My Secret Life in the CIA‎, HarperCollins, published 2000, page 186

The evil Darth Leonard steals the formula and a young couple must get it back (real life Ward Leonard is a legendary recluse who has hiked the Appalachian Trail something like 20-30 times).

2005, John Illig, Pacific Dream: A Pacific Crest Trail Through-Hike, Elderberry Press, page 74

I’m sure Darth Hoodie has some other illegal way of messing with inexperienced quarterbacks on the road.

2015 November 27, Jimmy Kempski quoted in "Patriots-Broncos prediction roundup" in Boston Globe