Assassin's Creed Easter Egg

In the mission 'The Forgotten Experiment,' which is included in the Lost Expeditions DLC, Jason Brody must collect all of the research notes. Once he does, the text will reveal the following message: Masahiro, I question these so-called scientists. They speak of Pieces of Eden and Edison's electrical experiments into "genetic memory." I do not trust them, and I have locked lab access. To access or exit the secured room use this code: 122112. Please exercise caution around these foreign devils.