User blog comment:EagleEye19/Who is Erudito?/@comment-201.69.177.4-20110101040116/@comment-1268108-20110111164117

with this argument and all the answers, we may conclude that Lucy may be a spy or something like it, since she past the guards of Abstergo, and at the end of AC:B Juno causes desmond attack her saying that lucy is not who he thinks she is, which gives a basis for various theories about who is lucy.