can be injected into one machine or onto one voting card and that virus will replicate from machine to card & vice versa, potentially infecting many machines... hiding itself from the verification software and deleting itself during the shutdown process, leaving no trace of itself behind.
https://www.youtube.com/watch?v=GaLyth-08Hg
an infected card used at the 6 min. mark of the video
Edited by JeffB at 11:37:55 on 10/27/16