For the Columbian equivalent, see Mosquito.

Security Bots are Security Devices in Rapture. They appear in BioShock, BioShock 2 and all their downloadable content. Many are owned by Andrew Ryan, and others are controlled by Splicers, or various local 'bosses'. They can be hacked by the player character to make them friendly protectors, limited to two at a time. As the games progress, the bots will become much tougher to hack, and cost more to buy out. The effect of an Auto-Hack, however, does not change. The alarm created by the security system can be shut down by using a Bot Shutdown Panel. The Security Bots mechanism includes: helicopter-like rotors, and what appears to be an outboard boat motor, and have machine guns (Minerva's Den introduces Security Bots with Lasers, Rockets or Tasers). Many Security Bots appear to be improvised devices like the city's Turrets.

Security Bot "Moods"Edit


Hostile Security Bot attacking.

Red LightEdit

Red lights on the Bots, as on basically anything in the game, indicate that they are hostile to the player. Bots enter this mood when called after the player has vandalized something, when the player has stayed in the vision of a camera too long, or when the Bots are under the control of Splicers. They will keep attacking the player until they are destroyed or hacked, or the Splicer that is controlling them is killed. The Bots can also be shut down through a Bot Shutdown Panel for a small price.

In the case of Bots being controlled by Splicers, both Bot and Splicer will have a red beacon on them indicating the connection, making it easier to tell who to kill to stop the Bots.

Note that such Splicer-controlled Bots can be hacked, thus turning the Bot against its former owner.

Yellow LightEdit

A Bot with yellow lights is essentially neutral to the player. It has been sent by a hacked Security Camera, and it will only attack enemies that the Camera has detected. After the targets have been eliminated, these Bots will go away. These Bots can be hacked if the player so wishes, and will not require immobilization to do so since they aren't targeting the player.

Green LightEdit

Security bot

A hacked Elite Security Bot.

Bots with green lights are completely friendly to the player and will fight alongside them until destroyed or deactivated. Bots in this mode won't attack enemies immediately, but they will attack after the enemy has done damage to the player or if the player attacks the enemy first. These Bots make excellent distractions for Big Daddies. The player must hack Bots to make them friendly.

Note that the player can have at most two friendly Security Bots. If they already have two, the "Hack" option will not be available on any new Bots until one of the friendly ones is destroyed or deactivated.

If the player leaves a friendly Bot behind by navigating to a different part of the level via an elevator or some other means that does not allow the Bot to travel along, it will find an alternate way to the new location and join the player in a short while.

If one attempts to navigate to a different level with a friendly Bot tagging along (for example, through a Bulkhead), the Bot will remain on its "native" level and turn itself off. Once the player returns to that level, the Bot will be waiting for them there, disabled, right where the player left it.


Main article: BioShock
Bshock bots

Two neutral Security Bots summoned by a hacked camera battle a Leadhead Splicer.

Security Bots are commonly seen throughout the game, working in pair with Security Cameras, protecting wandering Splicers or during scripted events. An Elite version with red stripes and a red fan first appear in Hephaestus and through all the following levels.



  • It is usually recommended to hack a Bot rather than destroy it, as a hacked Bot will provide the player with a boost in firepower, as well as a distraction against enemies.
  • Deactivated bots will produce a ticking sound, which grows in pace over time. If the Bot is not reactivated within a certain amount of time, it will automatically explode.
  • A destroyed Bot will explode, dealing high damage in the near vicinity. This can work to the player's advantage (see below).
  • It is possible to send Security Bots against an enemy without having to hack any. By initiating a hack, intentionally directing the flow towards an Alarm Tile and then painting the target with Security Bullseye, the player will be able to dispatch any enemy, Big Daddies included, over the course of the alarm, as well as receiving a continuous supply of Bots, which the player can choose to hack and/or research.
  • At the game's midpoint, Security Bots will be upgraded to shoot armor-piercing ammunition, dealing more damage to the player (as well as Big Daddies and other security devices if directed against them). Searching a destroyed Bot will also yield Armor-Piercing Auto Rounds from then on.
  • When an alarm is set off, Bots will always come in packs of two per Camera. Whenever one is destroyed, another will take its place.
  • A hacked bot can be instantly repaired by deactivating and reactivating it.
  • Placing a Target Dummy in a Camera's sight is a good way to draw in Bots to hack with a small cost in EVE and with little risk of injury.
  • Research of this type of enemy can be accelerated by either letting a Security Camera lock onto the player or by luring a Splicer near one after it has been hacked, setting an alarm off either way. With a hacked Security Scanner, when Security Bots appear, they give the player more chances to increase their research on them. If a Bot is destroyed during an alarm, another will come to replace it, offering even more research opportunities.
  • Intentionally setting off an alarm and activating a Bot Shutdown Panel will grant the player two deactivated Bots, which can either be hacked to provide support or searched for ammunition and U-Invent components.
  • Even when it is hacked or friendly, the bullets still can harm the player when standing between an enemy and a hacked security bot.


Neptune-Lower Wharf-06

A Security Bot under the control of a Splicer.

  • Always try to hack a Security Bot from a distance. Security Bots tend to move quite fast, so immobilizing them from up close is quite tricky. Second, there's always a risk the Bot will blow up in the player's face, so steering clear of them is advised.
  • If the above strategy fails, aim ahead of the Bot and quickly run towards it to initiate a hack.
  • Security Bots with a yellow light can be hacked without needing to immobilize them. The same applies to any Bot attacking a target other than the player.
  • Bots are particularly effective against melee-based enemies such as Bouncers, Spider Splicers, and Thuggish Splicers. Not only will these enemies be generally unable to destroy Security Bots due to the lack of a ranged attack, but the explosion a destroyed Bot will produce is usually enough to take out a large chunk of even a Big Daddy's health.
  • It is advised to research Security Bots to level 4, as this will enable the player to instantly succeed when initiating a hack.
Pre-Release Arcadia Baby Jane Security Bot Fight

Security Bot Attacking a Splicer in Arcadia.


  • As mentioned above, it is recommended to take on Security Bots from a distance, although it is easier to shoot a Bot than to immobilize it. Be wary of the explosion a destroyed Bot will produce.
  • If the player has set off an alarm, it is best to use economical means to destroy the constant flow of hostile Bots. Telekinesis and target-changing Plasmids are best adapted to this.
  • It is also generally recommended to use hit-and-run tactics when having set off an alarm, so as to have to destroy as few Bots as possible.
  • Bots always try to approach the player at point-blank range and will perform a suicide dive if severely damaged. As such, it is recommended to stay in motion whenever possible.
  • Shooting Bots when they are close to a group of enemies will cause said enemies to be damaged by the explosion provoked by the damaged Bot. If there are also explosives in the area, it is a highly recommended strategy.

Recommended Weapons and AmmunitionEdit


  • Liquid Nitrogen is the only viable weapon when hacking, as it is the only ammo type which does not damage enemies. Its high rate of fire also enables it to hit multiple Bots.
  • Attaching Proximity Mines to a hacked Bot will turn it into a mobile kamikaze. This strategy will cost the player a Security Bot, but will severely damage a Big Daddy.


  • Armor-Piercing Rounds will kill any machine in a couple of shots on any difficulty.
  • Electricity-based weaponry, such as Electric Buck and Electric Gel is extremely effective against machines, usually killing them in a fraction of a second with a minimal ammo cost. However, this ammunition is also the best against Big Daddies, so the player will have to choose which to give priority.
  • Liquid Nitrogen works well as an offensive weapon, as spraying multiple Bots before destroying them is easy, safe and cost-efficient.
  • Traps are generally useless, as Security Bots are normally agile enough to dodge them. The ammo cost is also not worth wasting it on Bots either.
  • Normal ammunition works rather well against Bots on any difficulty, as they are weak enough to go down in a couple of seconds with even the most inefficient ammo type.

Recommended PlasmidsEdit


  • Target Dummy is the ideal escape tool, as it will temporarily distract hostile Bots.
  • Security Bullseye is, of course, a useful tool when faced with these machines. Setting the Bots on another enemy will not only provide the player with an escape opportunity, but will also kill or severely injure the targeted enemy without them attacking the player.


  • Electro Bolt is the first choice presented to the player for hacking. However, it presents several disadvantages: it is tricky to aim, deals damage to the Bot, and won't stun for long enough unless the player upgrades.
  • Winter Blast is a good choice when hacking: it is relatively easy to aim, it slows down the water flow when hacking (useless after researching this enemy type at level 4 or above), and deals no damage to the Bot. However, there is a chance the Bot may accidentally shatter when falling.
  • Target Dummy will temporarily distract hostile Bots, enabling the player to hack them without having to immobilize them. It also has the advantage of being cheap, easy to use, and can distract multiple Bots at a time.
  • Security Bullseye, as with Target Dummy, will distract hostile Bots. However, it will also ensure the targeted enemy will either die or be severely weakened. On the other hand, the Bots may end up severely damaged or destroyed by the end of the battle.


  • Winter Blast is useful when destroying enemy Bots for two reasons: first, it enables the player to destroy Bots far more easily. Second, frozen Bots will not explode when shattered.
  • Telekinesis is a very good means of destroying Bots. Most objects will destroy Bots in one hit, and firing them costs next to no EVE. There is also practically no reload time between shots.
  • Target Dummy, by distracting hostile Bots, will enable the latter to pick them off at their leisure. It is both very economical and very effective, as it is capable of distracting multiple Bots at a time. There is also a chance that multiple Bots will end up shooting themselves in the process.
  • Security Bullseye will not only harm other enemies, but also weaken and/or destroy the Bots the player wishes to eliminate, making it easier to finish them off.

Recommended TonicsEdit


  • Natural Camouflage will greatly help the player evade Security Bots. Simply standing still during an alarm will guarantee the player won't be targeted, provided he or she does not shoot.
  • The Armored Shell line of Tonics will greatly reduce the amount of damage received from this enemy.
  • The Shorten Alarms line of Tonics will significantly reduce the duration of alarms set off by the player.


Note: The following Gene Tonics will become useless once the player has researched this enemy type to level 4 or over.


  • The Machine Buster line of Tonics will significantly increase damage against all machines.
  • The Damage Research line of Tonics will increase damage against enemies researched using the Research Camera. The effectiveness of this Tonic is entirely dependent on the amount of research the player has done.

    A friendly Security Bot attacking a Splicer.

BioShock Help Caption Edit

Security Bots are the muscle of the security system. When an alarm sounds they will go to the location where the camera last saw you. You can hide from them, but cameras will tell them where you are if you are seen again during an active alarm.
If you cancel an alarm early with a Security Shutdown Panel, the bot is instantly shut down and goes into a dormant state.
When dormant, bots can be hacked. If you successfully hack a dormant Security Bot, it will reactivate and follow you around, helping fight your enemies.
Hacked Security Bots will not attack your enemies unprovoked, but will join in attacking any target you yourself have attacked.

BioShock 2Edit

Main article: BioShock

Security Bots and their Elite versions return in the sequel, with a few changes. Their AI has been improved, to the point where hacked Bots will actively try to absorb enemy fire by placing themselves in front of the player.

Strategy Changes Edit

  • Landing the needle on a blue area during a hack will grant the Bot increased damage versus enemies. Landing the needle on a red area, however, will cause the Bot to explode.
  • Following this knowledge, it is possible to use a deactivated Bot as a strategically placed bomb. To detonate it, simply initiate a manual hack (preferably by use of a Remote Hack Dart) and land the needle on a red spot. This is best done when the Bot is at a distance from the player, for obvious reasons.
  • The Handyman Tonic allows the player to repair any hacked security by pressing the assigned hack button. Doing so upon a Security Bot will also have the effect of giving the bot a random name.
  • Security Command 2 summons a named Security Bot when it is charged and Security Command 3 summons an Elite Security Bot. This Plasmid can also be used to turn the bots against each other, drawing fire away from the player.
  • Telekinesis 3 can be used to destroy Bots fairly easily with a low cost of EVE. Conversely, it can also be used to pull a Bot away from the enemy controlling it, giving the player a chance to hack it while stripping the latter of its support.

Recommended Weapons and AmmunitionEdit


  • Armor-Piercing Rounds will kill any machine in a couple of shots on any difficulty.

Recommended TonicsEdit


  • The Short Circuit line of Tonics will make electricity shut down machines for a much longer duration.
  • Security Evasion causes Turrets and cameras to take longer to see the player.
  • The Armored Shell line of Tonics will significantly reduce damage taken from both bullets and explosions.
  • The EVE Saver line of Tonics will significantly reduce the amount of EVE used when using Plasmids.
  • The Drill Specialist Tonic will further reduce the EVE cost of Security Command. It also synergizes well, as this will be the player's only means of dealing sustained ranged damage when using this particular Gene Tonic.


  • The Careful Hacker line of Tonics will make the needle move slower.
  • EZ-Hack will make the green and blue zones slightly larger.
  • The Hacker's Delight line of Tonics will give the player a boost of Health and EVE once the hack is completed.
  • Hardy Machines will give hacked Turrets and bots more health.
  • Handyman will make it possible to repair hacked Turrets and bots for a small cost of EVE, as well as giving them random names.
  • Deadly Machines will make hacked Turrets and bots cause more damage.


Significant Security BotsEdit

Alex the Great uses a modified, indestructible Security Bot as his primary way of communicating with Subject Delta in the central building of Fontaine Futuristics. It is capable of killing Splicers using electric jolts.

BioShock 2 Help CaptionEdit

Security Bots are the muscle of the security system. When an alarm sounds they will go to the location where the camera last saw you. You can hide from them, but cameras will tell them where you are if you are seen again during an active alarm.

If you cancel an alarm early with a Security Shutdown Panel, the bot is instantly shut down and goes into a dormant state.

When dormant, bots can be proximity hacked by pressing _ . You can also hack them at any time from a distance by using the Hack Tool.

If you successfully hack a dormant Security Bot, it will reactivate and follow you around, helping fight your enemies. Hacked Security Bots will not attack your enemies unprovoked, but will join in attacking any target you yourself have attacked.

Getting a BLUE BONUS section while hacking a Security Bot will cause it to do more damage to your enemies!

Minerva's DenEdit

I guess sometimes a cloud of lead just ain't enough. Today I signed for a shipment of those new bot models from McClendon: one variety tosses lightning bolts, and the other fires a swarm of rockets. I understand we got some sensitive info bouncing around the mainframe -- but, brother! Have these guys ever heard o' overkill?
― Christopher di Remo[src]

In BioShock 2's downloadable content, Minerva's Den, both the regular and Elite machine gun Security Bots are replaced by three new types, each bearing a different weapon.


An advertisement for the Rocket Security Bots, as seen in Minerva's Den

Rocket Security BotsEdit

These Security Bots are fitted with rocket launchers, significantly increasing their damage output. While more dangerous, heat-seeking rockets can be dodged or thrown back with Telekinesis, and at close ranges the Bot risks dealing self-damage.

Strategy ChangesEdit

Bioshock2 2014-02-16 21-31-07-245

A friendly Rocket Bot attacking enemies.

  • When under attack by this type of Security Bot, never stand still and always stay clear of walls. This will reduce exposure to the rockets' splash damage and allow the player to dodge the projectiles.
  • If the player is in possession of a Little Sister, get behind her; she might block a few of the rockets.
  • Telekinesis will allow the player to catch the Bot's rockets before they can hit the player. If there are other enemies in the area, throw the missiles at them first.
  • Try to lure the Bot into locations where it will be liable to inflict self-damage. Small rooms, narrow corridors and areas littered with tall obstacles are such areas. Keep in mind, however, that enclosed spaces will also render the player more vulnerable to the Bot's splash damage.
  • Use Telekinesis offensively to throw the Bot's missiles back at it.
  • Rocket Security Bots are generally preferable over the other two types in open spaces and versus tough enemies, where they work best.
  • On the other hand, avoid keeping one of these when fighting in enclosed spaces. Not only will the Bot's ability to aim properly be heavily mitigated, but there is a high chance of it dealing damage to both itself and the player.
  • Try to steer enemies towards environmental hazards such as explosive barrels and oil slicks whenever possible. In addition to dealing the target heavy damage, the Bot's rockets will set off the hazard, finishing the enemy off or at least severely injuring them.
  • If in need of explosive ammunition, simply catch one of the Bot's missiles with Telekinesis and fire it at the target. Although a tricky strategy to master, it'll effectively guarantee the player an unlimited supply of explosives.
  • Shoot any enemies that are too close to the Bot, as the latter may end up dealing damage to itself.

Electric Security Bots Edit


An advertisement for the Electric Security Bot, as seen in Minerva's Den

Minervaden minervas-den

A friendly Electric Bot attacking an Alpha Series.

These Security Bots fire a stream of electricity, dealing low damage to the victim as well as stunning them. If used on enemies standing in water, they will take critical damage. On the flipside, their range is drastically reduced.

Strategy ChangesEdit

  • Avoid water at all costs, as remaining in contact with it will literally multiply the Bot's damage output.
  • It is impossible to dodge this Bot's attacks, so it is advised to stay at a certain distance from it when handling it.
  • Any weaponry that does not require too much aiming on the user's part is recommended, as being attacked by this form of Security Bot will disrupt the player's aim.
  • Stunning the Bot with Electro Bolt will keep it at a safe distance from the player.
  • Gravity Well will pin the Bot in place and deal severe damage to it, allowing the player to retreat safely and even destroy it in one fell swoop.
  • This kind of Security Bot works best in small spaces, where its lack of range won't hinder its effectiveness. Avoid bringing these around in wide areas.
  • Always try to lure enemies into water as the Bot will deal very high damage to not only them, but also to any other enemies in the pool.
  • Although this Bot deals less damage than its other two counterparts, it'll stun any nearby enemies continuously.
  • Always target enemies stunned by the Bot. Groups can be mopped up with a few well-placed rounds, and more dangerous enemies can be disposed of with relative ease, owing to the fact that they're completely defenseless while under the Bot's influence.
  • Enemies stunned by the Bot will remain rooted to the spot. This allows the player to headshot the enemy much more easily.
  • Enemies attacked by the Bot will be vulnerable to the One-Two Punch: approach the target at melee range and quick-melee them until they die. Not only is this ammo-efficient and risk-free (the enemy can't fight back), but it is also extremely effective. Most Splicers will die in a single hit. However, avoid standing between the Bot and the target, as it may shock the player instead.
  • These Bots also have the property to disable machinery for a prolonged amount of time, although if the machine is even partially submerged it will take critical damage.

Laser Security BotsEdit


An advertisement for the Laser Security Bots as seen in Minerva's Den.

These Security Bots use a uniquely designed Ion Laser that fires a beam of concentrated energy, dealing continuous damage as well as blinding the victim. An Elite version can also be summoned when charging up Security Command 3.

Strategy ChangesEdit

Minervaden bots

A Laser Bot attacking the player.

  • Use Telekinesis to pick up a makeshift shield. This will protect the player from the Bot's blinding effect.
  • Move around constantly, especially close to the Bot. Since their beam is highly visible, it'll be easier to dodge their attacks than for most other enemies.
  • Keep in mind that this Bot's strength lays in being able to deal continuous, non-stop damage. The less time spent fighting this enemy, the better.
  • As with the Electric Security Bot, Gravity Well will keep the Bot away from the player while simultaneously damaging it, allowing for a safe retreat.
  • This Security Bot type can provide support against individual targets, but struggles against large groups. Keep it if planning to fight a powerful enemy, such as a Big Daddy, in single combat.
  • Range is irrelevant when using this Bot. A good strategy would be to snipe an enemy from a distance and let the Bot finish them off.
  • Although enemies will take damage from the Bot, they'll be receiving it gradually and continuously rather than instantly, leaving the Bot vulnerable to attack. Help it out if it's taking too much time fighting a single foe.
Blueprint Laser

Blueprints for the Laser Bot-specific Ion Laser, found in the Robotics Workshop in McClendon Robotics.


The bots' distinctive whistling upon spotting the player:
SecurityBot LockOnPlayer


Behind the ScenesEdit

  • In the first BioShock, once an alarm ends the bots actually don't go anywhere. The game simply waits until the player can no longer see them; upon this they simply disappear.
  • Elite Security Bots make their first appearance in BioShock, however they are named like regular ones and simply replace them for the second half of the game, similarly to Elite Big Daddies.
  • The design for the Security bot was based on the 1937 Sears Waterwitch Outboard engine.[1]
  • Gilbert's Security Bot, in navigation mode, has 2.5x the thrust of normal Security Bots, at the cost of half its lateral torque and all its momentum torque.[2]
  • Gilbert's Security Bot has the same attack technique as the Electric Bots present in Minerva's Den.
  • The Machine Gun Security Bot's weapon is a belt-fed M1A1 Thompson sub-machine gun.[citation needed]
  • Frank Fontaine mentions that Jack avoided getting killed by Security Bots at first sight because of Andrew Ryan's genetic heritage.
  • The Columbian variant of the Security Bot in BioShock Infinite is called the Mosquito, though it only patrols areas.
  • Two different models of Security Bot were cut from BioShock, the "Taser" and "Freeze n Buzz". The Taser Bot carried a long probe that could fire electric bolts while the Freeze n Buzz carried what looked to be a Chemical Thrower capable of firing Liquid Nitrogen to freeze an enemy. The "Taser" model later became the Electric Security Bot in the BioShock 2 DLC Minerva's Den.


  1. Shawn Robertson's Portfolio
  2. BioShock 2: ConfigINI.IBF - BotFlyingMotionParameters.ini