Breaking the Bank is a Crimson Fleet faction quest in Starfield that follows the Echoes of the Past quest, where the fleet learns about the GalBank Transport ship called Legacy. While collaborating with the fleet, you meet a contact named Egveny Rokov aboard the Siren of the Stars and acquire Larry Dumbrosky's GalBank Credentials.
Starfield: Breaking The Bank Quest Guide
Blackmail your way to acquire the GalBank credentials in Breaking the Bank quest in Starfield!