Affirm, a fintech software platform specializing in buy-now-pay-later services, faces a class action lawsuit for allegedly failing to safeguard user data. The breach, involving its banking partner Evolve Bank & Trust, came to light when a known cybercriminal organization published client information on the dark web. Morgan & Morgan filed the complaint on Wednesday in the U.S. District Court for the Northern District of California. Evolve confirmed the breach occurred on June 25.