Fulcrum
Early on in the first Ahsoka episode, Ahsoka receives a transmission while aboard her ship that refers to her as “Fulcrum.” This was a codename utilized by Rebel informants in the time leading up to the famed Battle of Yavin from A New Hope, but we first hear of it in an episode of Rebels. The Fulcrum title was shared by several informants (an idea Ahsoka came up with to further confuse the Empire) and Ahsoka herself worked with Hera Syndulla and Sabine Wren, first in disguise, before revealing herself to them.
