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[[quoteright:300:[[VideoGame/MetroidPrime http://static.tvtropes.org/pmwiki/pub/images/G2ME01-2_1243.png]]]]

So, you are fighting robotic enemies. Maybe it's a RobotWar or your enemy just uses computer controlled soldiers. Why not hack some of them? You can turn them off without a fight or - even better - reprogram them to think you are their commander and their commanders and allies are their enemies, so you get free reinforcements and ideal infiltrators.

For biological alternatives, see PuppeteerParasite, {{Brainwashing}}, and MindControl. You may notice that they are much more "evil" things to do, presumably because even RidiculouslyHumanRobots lack a "soul" of some sort and therefore it is not a bad thing to completely alter their personalities. Can lead to a FaceMonsterTurn or ApologeticAttacker.

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!!Examples:

[[AC:{{Anime}} and {{Manga}}]]
* ''Franchise/GhostInTheShell'':
** In [[Manga/GhostInTheShell the original manga]] and [[Anime/GhostInTheShell the first movie]], people were hacked, giving them FalseMemories amongst other things.
** From ''Anime/GhostInTheShellStandAloneComplex'':
*** In the episode "Automated Capitalism". While the team is infiltrating a millionaire's estate, Batou is pursued by robot dogs. He neutralizes them by hacking into their computer brains.
*** In one episode The Major directly controls Togusa to stop him allowing himself to be made a scapegoat because of his LawfulStupid nature.
*** The third movie's BigBad is called "The Puppeteer". Guess what he does.

[[AC: ComicBooks]]
* ''MagnusRobotFighter'' pulled this stunt at least once, by knocking the robot offline, opening up the back panel, disabling its wireless and setting it to local speech control.
* Rai (ValiantComics) has this as a superpower. With the cry of "MINDLOCK!" he can take control of any ''one'' machine within the range of his voice.

[[AC:{{Film}}]]
* ''Film/Terminator2JudgmentDay'': The future John Connor reprogrammed a captured T-800 and sent it back in time to protect his younger self from a more advanced Skynet-programmed terminator.
* ''Film/Terminator3RiseOfTheMachines'': In this timeline the future John Connor was actually killed by a T-850 model after Skynet's presumed defeat. John's widow Kathryn Brewster then reprogrammed it and sent it back in time to save a 20s-something John from another attack by an even more advanced Terminator model.
* Flynn hacks a guard program in ''Film/TronLegacy''.
** The ''darker'' take on this, of course, is Clu's [[{{Brainwashing}} "rectification"]] procedure, and [[{{Tron}} Master Control's]] [[TheAssimilator "assimilation"]] before that.
* Pretty indispensable in ''Film/{{Robot}}''.
* Little hacker girl Nikko deters ED-209's demands for compliance in ''Film/RoboCop3'' by hacking it to be "as loyal as a puppy".

[[AC:LiveActionTV]]
* In episode Deliverance of ''Series/StargateUniverse'' they hacked enemy unmanned fighters to fight other fighters
* ''Terminator: TheSarahConnorChronicles''. John Connor reprograms yet another Terminator (named Cameron) and sends it back in time to protect his earlier self.
* In ''Series/GetSmart'' Hymie the Robot was an invention of KAOS to infiltrate CONTROL, which CONTROL then reprogrammed for niceness instead of rottenness.

[[AC:TabletopGames]]
* Deckers/hackers in ''TabletopGame/{{Shadowrun}}'' can do this, subverting control of hostile drones (or even the smartlinks of enemy weapons) and take them out of the fight or switch their IFF readings to turn them into allies. They can only do this to autonomous or remote-controlled drones; if a rigger has [[RemoteBody jumped into a drone]], it's immune to hacking. Instead of directly hacking control, they can spoof commands, making the drone think that its owner is giving it new instructions (like "reboot"), which requires knowing the rigger's access ID, but is considered easier than wresting control away by force.
* A prominent component of ''TabletopGame/{{Infinity}}'', where hackers can seriously cripple or co-opt enemy heavy infantry and robots, and defend their own heavy infantry and robots from the enemy.

[[AC:VideoGame]]
* In the multiplayer mode of ''MetroidPrime 2'', one of the powerups you can get allows you to hack your opponent using the [[EnemyScan scan visor]]. This results in them taking continuous damage and a fuzzy screen for a short time (pictured above).
* In VideoGame/{{Fallout 2}} you can hack turret control to use them against final boss.
* In VideoGame/{{Half-Life 2}} Alyx hacked security system in Nova Prospect and programmed turrets to shoot guards and not Gordon. Gordon himself reprograms land mines by simply grabbing them with gravity gun.
* In ''VideoGame/MassEffect1'', AI Hacking is an unlockable ability for an [[TheEngineer Engineer]]-class PC and [[WrenchWench Tali]]. In [[VideoGame/MassEffect2 2]], it is also available for Legion, whose loyalty mission also involves taking control of enemy turrets and [[spoiler: a virus that would have rewritten the "mainstream" geth into Reaper-worshipping "heretics". Whether you actually use the virus is up to you.]]
** In VideoGame/MassEffect3, such functionality gets wrapped into "Sabotage", which encompasses causing weapon malfunctions against organic foes as well. Becomes very useful in turning the tables on [[TheTurretMaster Cerberus combat engineers]] and their [[DemonicSpiders deployable turrets.]]
* In ''VideoGame/{{BioShock|1}}'' you can hack the flying defense turrets, which then follow you around and shoot the enemy. You can hack security cameras as well, but that's [[InsecurityCamera another trope]].
* In ''VideoGame/ProjectSnowblind'' you can hack pretty much any robotic enemy.
* In the original ''AlterAILA'', Orange's special ability involves this.
* In flash game ''VideoGame/IAmAnInsaneRogueAI'' you play as [[AIISACrapshoot insane rogue AI]]. At the beginning, hacking maintenance robots is the only way to kill inhabitants of buildings you attack. Later you will gain access to various other methods, but hacked robots and turrets will remain primary cause of fatalities.
* In ''VideoGame/GoldenEyeWii'' you can use your smart phone to hack the computer controlled guns, which will then kill any mook in their range.
* ''VideoGame/SystemShock 2'' allows you to hack defense turrets if you can sneak up to them, turning them over to your side.
* One of the Reality Shifts in ''VideoGame/KingdomHearts3DDreamDropDistance,'' called "Code Break," allows you to hack enemies and cause them to attack their own or become walking time-bombs under your control.
* In ''VideoGame/{{Crysis}} 3'' you can hack turrets, mines and Scorcher drones if you're close enough and have clear line of sight.
* In a video game based on ''Anime/GhostInTheShellStandAloneComplex'', obtaining unit ID and hacking key data from defeated enemy commanders allows the player to hack other members of their unit. This can be used for scouting or taking out other enemies, but the hacked enemy drops dead once the connection is cut. Also, it can be done at almost any distance and through several walls.
* In ''{{VideoGame/Iji}}'', one of Iji's stats is "Cracking", which determines what level of nanotechnology she can successfully hack into. She can crack enemy weapon systems, turrets, and even an Annihilator exoskeleton in order to use them against the alien invaders. This is also the only way to beat the otherwise NighInvulnerable Iosa.
* ''VideoGame/ShadowrunReturns'' has several missions which can be made easier by having a decker hack the enemy's automated defenses during the fight.
* Rogue-archetype ships in ''VideoGame/RingRunnerFlightOfTheSages'' have a Gemini Array, a communication device that can be used for tricks such as shutting down an opponent's weapons or shields.

[[AC:WesternAnimation]]
* In one arc of ''WesternAnimation/StarWarsTheCloneWars'', a rescue operation involved reprogramming separatists' droids to think R2-D2 is their commander.
* In the ''WesternAnimation/TeenTitans'' series, GadgeteerGenius Gizmo often uses this technique on Cyborg.
* An ''aversion'' in ''WesternAnimation/AdventuresOfTheGalaxyRangers'' when it came to the Queen's {{Mook}}s. While they appeared to be standard [[TheEighties 80's]] era MechaMooks, the fact that Doc never used his tweakers to hack into them was a ''major'' hint that they ''weren't'' robots at all. The episode "Tower of Combat" did have him use this trick against the General's replicants, so we know he was at least capable of doing so.
* On ''WesternAnimation/InvaderZim,'' a battle with [[DarkActionGirl Tak]] and her robot assistant, [[HypercompetentSidekick MiMi]], causes the latter's memory disk to fall out of her head. In the final space battle between them and [[VillainProtagonist Zim]], [[CreepyChild Gaz]] and [[ServileSnarker Zim's computer]] hook the disk up to [[ChaoticStupid GIR]], causing [=MiMi=] to act as insane as he does and throw Tak's ship out of control.
** After [[HeroAntagonist Dib]] acquires Tak's ship, he uses it to interfere with Zim's plan to hack into the the Massive and bring it to Earth. In response, Zim hacks into Tak's ship to reestablish it's original programming--a copy of Tak's own personality, which causes the ship to attack Dib.

[[AC:RealLife]]
* Supposedly, one of the reasons that the United States Navy suffered no casualties during the 1986 "Line of Death" confrontation with Libya was that the American military successfully hacked and effectively disabled Libya's air defense systems.

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