Editing Command Navigation Program
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[[Image:ViperMk7Avionics.jpg|left|thumb|The CNP managed the [[Computers in the Re-imagined Series#Avionics|avionics]] of [[Viper Mark II]]s and almost all [[Mercury class battlestar|battlestars]] before the few fighters that survived were retrofitted after the [[Fall of the Twelve Colonies|attack]].]] | |||
Developed by Dr. [[Gaius Baltar]], the '''Command Navigation Program''' (CNP) is a operating system<ref>The Command Navigation Program was an actual operating system (similar, after a fashion, to the Microsoft Windows, Linux and Mac OS X operating systems on today's personal computers) that worked as designed. However, the work of Number Six added the compromises that allowed the Cylons to later control it.</ref> utilized by the [[Colonial Fleet (RDM)|Colonial Fleet]] and some civilian spaceships in the [[The Twelve Colonies (RDM)|Twelve Colonies]].<ref>[[Aaron Doral]] provides a requested report to [[Gaius Baltar]] in [[CIC]]: "You asked for a report on how many civilian ships had your CNP program?" ([[Miniseries]]).</ref> Installed in the central computers of [[Viper (RDM)|Vipers]] and [[Raptor|Raptors]] and in the [[Computers#Navigation computer|navigation computers]] of almost all [[battlestar]]s, the CNP was more than two years in the making. | |||
Unbeknownst to Dr. Baltar, his lover and a cowriter of the CNP turned out to be a version of the [[Cylon agent]] known as [[Number Six]]. She programmed [[backdoors]] into the program so that the [[Cylon]] attack force could break through the Colonial firewalls<ref>The CNP is not a [[virus]], nor is it a [[Wikipedia:Computer worm|worm]] or Trojan Horse. The Cylon's use of the CNP is an example of [[Wikipedia:backdoor|backdoor exploiting]] of an secured computer system through a secreted password or other hidden access in order to gain command privileges. This cyberwarfare tactic differs from the Cylon's older method used in the [[Cylon War]] of using their computers to seek exploits within and forcibly enter ("crack") a Colonial computer, whereby the attacked computer is infected with a virus that causes havoc on the Colonial computer. A similar premise is used with a military computer by the central character in the movie, [[IMDB:WarGames|''Wargames'']].</ref>. Vipers with the CNP that received a command from attacking Cylon ships would be shut down "as if a switch were flipped." Communications officer [[Anastasia Dualla|Dualla]] describes reports of "system failures" throughout the Fleet and how at least one battlestar lost power when the attack began, which indicate the Cylons used the CNP to damage and, in at least one case, disable capital ships as well ([[Miniseries]]). | |||
The CNP was previously received by battlestar ''[[Galactica]]'', but the program was never loaded into the primary memory of the ship's navigation computer | |||
<ref>''Galactica'' herself is spared from Cylon computer attacks for two reasons: The CNP is not loaded on any of her computers to allow the backdoor attempt, nor were her computers networked in the Cylon Attack to allow a virus cracking attempt.</ref>, although her last squadron of Mark VII Vipers received the upgrade. As a result, the squadron is massacred by two [[Cylon Raider|Raiders]] on their way back to [[Twelve Colonies#Caprica|Caprica]]. | |||
Lieutenant [[Felix Gaeta]] has the program code purged from the mainframe on Baltar's suggestion, and the program is also retrograded on the [[Computers#Avionics|flight systems]] of surviving Mark VII Vipers, Raptors, and civilian ships ([[Miniseries]]). | |||
Lieutenant [[Felix Gaeta]] has the | |||
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