AC4 Black Flag Abstergo Building Computers Hacked Puzzles

There are 33 computers that you can hack in Assassin’s Creed 4: Black Flag. They are spread all over the four floors of Abstargo Entertainment building.
Beside hacking computers that counts for computers hacked collectible, there are also servers that you can hack into. Hacking servers also contributes towards the computers hacked number. Some of the rooms that have computers/servers inside them also have security clearance levels you need to obtain in order to enter them. You get this security clearance level while playing the main story missions. You are going to hack 4 computers, while playing missions, that count towards the computers hacked number.

Exit Animus OptionIn order to reach the Abstargo Entertainment building, while you are in role of the pirate, press start on your controller. This will pause your simulation and bring up a new menu. In this menu press “Quit” and “Exit Animus”.
Prime Number Data Stream and SphereHacking computers and servers requires solving sphere puzzles, data stream puzzles and prime number puzzles. With sphere puzzles you should guide your data avatar towards the green line. This can be hard as data avatar, presented as a dot, moves straight until it reaches the end of the line. You, basically, need to find a line whose one end closes a 90 degree angle with the green line. With data stream puzzles you should navigate another dot through security programs presented in a shape of lines that move up and down. With prime number puzzles you should find the correct combination of numbers, while navigating through given number combinations.

Rewards for solving these puzzles come as audio, video and written lore. Inside of this guide you can find all 29 computers that you can hack. Four, out of all 33 needed for the achievement, are acquired through missions.

Note: If you are missing one or more hacked computers for completion of entire collection, you should go to all floors and scout those areas. Opening map and switching between maps will not reveal computer’s or server’s map icons you had not hacked before.

Computers Hacked on fl. B – servers

fl b servers computer hacked locations
  1. Sphere Combination: Up, Right, Down, Right, Up, Right, down, Left, Down, Right, Up, Left, Down, Left, Up&Down
    Lore: Abstergo Industries \ Abstergo Pack
  2. Sphere Combination: Down, Left, Down, Left, Up, Left, Down, Right&Left
    Lore: Subject Zero \ “Subject Zero” – audio file 2
  3. Sphere Combination: Right, Up, Right, Down, Right, Down, Right, Up, Left, Up&Down
    Lore: Great Minds \ Great Minds in History, Commission 1
  4. Prime Number Combination: 7-3-7-7
    Lore: Abstergo Entertainment \ Age of Cutthroats

Computers Hacked on fl. 1 – lobby

hacking computers in lobby
  1. Data Stream Puzzle
    Lore: Abstergo Industries \ “Divine Science” Video
  2. Data Stream Puzzle
    Lore: Abstergo Industries \ Subject 1 – interview session
  3. Sphere Combination: Right, Up, Right, Up, Left, Down, Right, Up&Down
    Lore: Abstergo Entertainment \ CONFIDENTIAL – Chat Log
  4. Sphere Combination: Up, Left, Up, Left, Up, Right, Up, Left, Up, Right, Up&Down
    Lore: Subject 17 \ Subject 17 – memo 4
  5. Prime Number Combination: 7-7-2-2-7
    Data Stream Puzzle
    Lore: Subject Zero \ “Subject Zero” – audio file 5

Computers Hacked on fl. 2 – sample 17

fl 2 sample 17 Computers Hacked Location
  1. Sphere Combination: Right, Up, Right, Up, Right, Down, Left , Up&Down
    Lore: Abstergo Industries \ “Divine Science” Presentation
  2. Sphere Combination: Down, Right, Down, Left, Down, Left, Up, Left, Up, Left
    Lore: Abstergo Industries \ Early Animus Prototypes
  3. Sphere Combination : Down, Right, Up, Left, Down, Right
    Lore: Abstergo Entertainment \ Security Systems Presentation
  4. Sphere Combination: Left, Down, Left, Down, Left, Up
    Lore: Subject Zero \ “Subject Zero” – audio file 1
  5. Data Stream Puzzle
    Lore: Market Analyses: A. de Grandpre
  6. Sphere Combination: Up, LLeft, Down, Left, Down, Right, Down, Left&Right
    Lore: Subject Zero \ “Subject Zero” – audio file 3
  7. Sphere Combination: Down, Right, Up, Left, Up&Down
    Lore: Abstergo Industries \ Crypto-History: Artifacts
  8. Data Stream Puzzle
    Lore: Market Analyses: E. Auditore
  9. Sphere Combination: Right, Up, Right, Up&Down
    Lore: Subject 17 \ Subject 17 – memo 3
  10. Sphere Combination: Left, Down, Left, Up, Right&Left
    Lore: Great Minds \ Great Minds in History, Commission 2
  11. Data Stream Puzzle
    Lore: Abstergo Industries \ Crypto-History: Locations
  12. Data Stream Puzzle
    Lore: Subject 17 \ Subject 17 – memo 1
  13. Data Stream Puzzle
    Lore: Subject 17 \ Subject 17 – recovered media
  14. Sphere Combination: Right, Up, Right, Down, Right&Left
    Lore: Subject 17 \ Desmond Pack
  15. Sphere Combination: Right, Up, Right, Up, Left, Up, Left, Up, Right, Up&Down
    Lore: Abstergo Entertainment \ “Hidden Secrets” Ad Concept
  16. Sphere Combination: Down, Left, Down, Left, Up, Right, Up, Left&Right
    Lore: Market Analyses: A. lbn La’Ahad
  17. Sphere Combination: Up, Left, Up, Left&Right
    Lore: Great Minds \ Great Minds in History, Commission 3
  18. Data Stream Puzzle
    Lore: Subject Zero \ “Subject Zero” – audio file 4
  19. Data Stream Puzzle
    Lore: Subject 17 \ Subject 17 – memo 2
  20. Prime Number Combination: 7-3-7-2-7
    Data Stream Puzzle
    Lore: Market Analyses: C. Kenway
  21. Sphere Combination: Down, Right, Up, Left, Down, Left
    Lore: Subject 17 \ Post-Mortem Report: Subject 17

Computers Hacked on fl. 15 – cco

fl 15 cco computer hacked locations
  1. Prime Number Combination: 7-7-7-7-3
    Data Stream Puzzle
    Lore: Great Minds \ Great Minds in History, Commission 4
  2. Data Stream Puzzle
    Lore: Abstergo Entertainment \ From Journals of Edward James Kenway
    Note: This one for some reason counts as the third mission related computer hacked. If you missed it before, you can return and hack it.
  3. Data Stream Puzzle (Mission Related)
    Lore: Abstergo Entertainment \ CONFIDENTIAL – Subject – RE: Potential time periods?
    Note: The third time game sends you to Abstergo building, you are suppose to climb over Suspended Scaffolding to Oliver’s office. There you can hack his computer without any alert.

Selected Lore Gallery

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Author Lokesh profile picture
Lokesh still remembers Purra, the cat from Aion, and how finding her and helping other players by spreading the information made him feel proud. Presenting precise and clear guidelines that readers can easily comprehend is the goal he strives for. That being the case, please excuse the numerous lists and tables in his articles.

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24 COMMENTS

  1. D
    DREW

    Did anyone else notice that hacking two computers on the level 3 access section gave the same reward video of Connor’s Abstergo review? I got the same video twice in a row by hacking a server room followed by the laptop on the table just outside the server room. BUG? ERROR? Or are they one hack reward short so had to re-use one? short

    1. If we are talking about the same computers, number 11 and 20 in fl.2 – sample 17 floor, don’t they give two different rewards. Server (security level 3 room) gives Market Analyses: C. Kenway, while the laptop (security level 2 room)gives Crypto-History: Locations – Aleya Ghost Lights.

  2. J
    Jamison

    Someone please tell me why i cant find the last the computer when i finished the game?

    1. Check out each floor. Do not open map and look where you have missed it. Not hacked computers do not show up on a map of any floor if you are not on that floor.

      1. T
        Thespackler

        I have the same problem as Jamison, but I did as you said, even used your maps and still cant find it, i counted every computer i checked aswell but nope, no computer reacts when I get close (tried pressing E even without a reaction) still 32/33, super annoying, must be bugged for me.

        1. It was actually weird for me, because I have had 33/33 with one computer not hacked. It was number 2 in fl.15 cco. If I remember correctly this computer was a part of a mission where you access the main room with computer 1 with a help of a suspended platform. When I got back to check it out, it was still there not hacked, and I hacked it even with 33/33.

          1. V
            VectorDidact

            I had 33/33 but one computer in the server room wasn’t hacked yet. how many are there because I now have 34/33

  3. A
    asd

    Definitely bugged. The last one for me is the one marked “1” in the lobby in the screenshot above. It still has the green screen (non hacked) but no symbol is shown in the map, nor the context button appears to start hacking, and pressing B nearby does nothing.
    Other bugs of the game include stuck social events (like royal convoys), or impossibilty to start multiplayer mode when a non XBox controller is plugged in (and pluggin in while playing crashes the game).

  4. D
    Digital821

    I somehow missed hacking Melanie’s computer. Hers is the only one I need, and I’m at the moment where you start the final sequence. She’s sitting at her desk. Am I boned?

    It’s the computer with the reward of the Grandpre market analysis.

  5. B
    Bailey Lawrance

    I did all the computers AFTER completing the main story, and I went into her office to to make sure I didn’t miss anything and she wasn’t at her desk at the time. Try finishing the story, then checking her office again.

  6. R
    Robo11

    Make sure you are hacking the security camera computers shown on the map as well as the computers.

  7. S
    Sir Nope

    Yah, same issue. 32/33 and going off your picture maps I’ve covered them all. #21 and #9 show as Blue/ Green but can’t do anything to them. Yet I know I’ve been to them prior.

  8. H
    Henrik mæle klausen

    why is ther 34 computers in my game?

  9. When you complete mission that sends you to fl. 15 – cco, game counts that as 2 computers hacked, although you have hacked only one computer. If you come back to that floor and hack the computer at the desk of a secretary (number 2), game counts that as 34/33, at least it did for me…

  10. B
    Bossbast1

    I have 32/33, I checked all entries in the database. All of them are there – 6 (7 – video given by Melany) Abstergo Entertaiment., 7 Abstergo Industries, 4 Great Minds, 7 Subject 17, 5 Subject Zero, 4 Market analys – 6 + 7 + 4 + 7 + 5 + 4 = 33. Also, when I go to hall random computer is blue, but each time another one. So it is certaily a bug. Also, when I hacked the 33 computer, I get promt that I have 33/33, but in my goals it shows only 32 🙁

    1. It was “funny” for me as well. At the end of writing this guide, I’ve was sure I had missed one computer, even though I’ve had 33/33. So I’ve went back to fl. 15 – cco and hacked computer number 2 for the first time. Somehow it had counted as hacked computer during the previous mission. And guess what? It showed me 34/33 now…

  11. C
    Conor

    What is Great Minds Commision 4? I have the other three & an curious as to the identity of the fourth.

  12. His name is Haytham Kenway, The Loyal Father. In game text says : “Suave, debonair, and clever, Haytham Kenway was a hero for a generation of men desperate for a decisive and charismatic leader. Slain by the ungrateful son who could not appreciate the wisdom of his pragmatic, race-blind approach to politics and personal life, Kenway’s tenure as Grand Master of the Colonial Rite ended abruptly in 1781.”

  13. S
    Stanley

    So there’s no reward if i hacked all 33 computers??

  14. G
    Grapesdaughterofsea

    this is really annoying. Can’t find the last computer. got all the notes, and that reward note. Is there any reward for hacking everything?

  15. J
    Jeremy Psenicka

    Everything is done in the game except this. 32/33. Checked and rechecked every computer and nothing. Counted my files and guess what? I have 33 files. 34 if you count the employee passport. What now?

  16. A
    alper hayta

    i finished the game twice with two different versions of the game.and in both of two games i hacked all computers but i think the files we get may different,because at my first playing there was haytham kenway at the section of grand masters,so with him there is 4 g.m.,but at the second one i couldnt realize haytham file in there.just 3 grand master.anyone got same issue like that?

  17. P
    Pure

    This hacking crap sucks ihate this part of the game is there any way to skip it

  18. A
    Aileen

    My game must have glitched. I’m missing the Data Stream Puzzle
    Lore: Abstergo Entertainment \ From Journals of Edward James Kenway.
    This is the #2 computer on the cco floor. I’ve finished the game and I have hacked all the other computers. If I stand in front on this computer it’s blue but there is no option to connect to it. Super frustrating. Looks like a lot of you are having a similar problem. Please help 🙁

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