NOTE: REPLY WITH A COMMENT, I REPLY TO EVERY COMMENT WITH ANSWERS. I will NOT answer any messages with detailed information. Send me a message, but I will just link you back to this video.
Info on all the computers and the hidden room that you do not seem to access. Here is how.
You need to pickpocket Viddic's pen. Take Lucy's pen and read their mail until you find the door code on Viddic's deleted email.
Sorry for crappy quality.
More info: http://assassinscreed.wikia.com/wiki/Walkthrough
(4.80)
