Group 1 - Brazilian state-run bank BRB is expected to set aside more than 5 billion reais ($970 million) to cover transactions with the failed lender Banco Master, which is nearly double the initial provision of about 2.6 billion reais required by the central bank [1][2] - The central bank director Ailton Aquino indicated that the provision in BRB's balance sheet will be very large, likely exceeding 5 billion reais, as part of an investigation into alleged fraud involving transactions between BRB and Master [2] - BRB has announced a capitalization plan to address potential shortfalls, which will be based on central bank estimates and an independent investigation [2][3] Group 2 - BRB had plans to acquire Banco Master, but the deal was blocked by the central bank due to Master facing a severe liquidity crisis [3] - Transfers between BRB and Master totaled 16.7 billion reais from July 2024 to October 2025, with concerns raised by the central bank regarding BRB's transactions since March 2025 [4] - Banco Master was liquidated on the same day federal police launched an operation targeting alleged fraud at the bank, leading to the arrest of its owner, Daniel Vorcaro [5]