As noted previously, Anakin Skywalker creates the Fulcrum codename to provide aid to those in need. It famously allows him to communicate with Saw Gerrera, who leads the fight in attempting to free Onderon from the Separatist-backed Sanjay Rash (Kirk Thornton). Through it, Onderonian freedom fighters have a lifeline directly to the Republic to keep their rebellion from dissipating due to Separatist force. Little does Skywalker realize at this point, the codename he created to help out rebels is destined to work against him.
With the end of the Clone Wars and the establishment of the Galactic Empire, Anakin Skywalker becomes the Sith known as Darth Vader. Under the watchful eye of his master, Emperor Palpatine (Ian McDiarmid), he becomes an Imperial figurehead feared across the galaxy — one who frequently crushes rebel activity personally. Right under his nose, Ahsoka Tano and various other members of the Rebel Alliance continue to use the Fulcrum name to undermine Imperial expansion, making him something of the architect of his own empire’s destruction.
As long as Ahsoka is active in the «Star Wars» galaxy, it stands to reason that Fulcrum will continue to be a codename used by her and her closest allies, affording help and resources to those among the stars who need them most.