In brief

The Federal Police forensic report concluded that the credit portfolios MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ sold to BRB had no backing: not a single credit could be confirmed.

2 billion, part of it after the Central Bank had already questioned the deals.

On September 13 the examined total rose to about R$ 17 billion and BRB responded by calling itself a victim of its former managers.

What we know

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  1. Verified fact · material

    The Federal Police forensic report, released on September 11 after the Supreme Court ordered secrecy lifted, concluded that not a single credit in the portfolios Banco MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ sold to BRB could be validated with real backing, with the Central Bank pointing to strong signs of non-existent portfolios originated by Tirreno, per CNN Brasil and Poder360.

    It is the conclusion that defines the event.

  2. Verified fact · material

    BRB transferred R$ 12.2 billion to MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ in credit assignments between December 2024 and May 2025, R$ 4.05 billion of it after Central Bank questioning and despite formal warnings, risk reports and contrary opinions from technical areas, per Poder360 and CNN Brasil.

    Sizes the hole and the negligence alleged.

  3. Verified fact

    The Federal Police describe 182,000 operations concentrated in just 12 standardised amounts and more than 290,000 of 358,000 clients repeated from earlier assignments, aimed, per the report, at providing MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ with artificial liquidity, per Poder360.

    Evidence of the fraudulent pattern.

    Sources[03]
  4. Verified fact

    g1 reports the Federal Police concluded there was fraud in R$ 17.5 billion of MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ portfolio purchases by BRB, and O Globo that BRB came to have 90.3% of its credit book concentrated in MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗, cuts of total examined and book composition accessible only as headlines; Cartos denied any link to Tirreno and those investigated deny wrongdoing, per Poder360 and CNN Brasil.

    Other cuts and responses.

  5. Verified fact

    BRB estimates a R$ 12 billion loss and is negotiating a R$ 6.6 billion injection to shore up capital, per CNN Brasil.

    The bank's position after the forensic report.

    Sources[01]
  6. Verified fact · material

    The Federal Police report totals about R$ 17 billion in fictitious or materially unsupported operations between MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗ and BRB and puts BRB's transfers into incompatible operations at R$ 20 billion, cuts distinct from the R$ 12.2 billion in CCBs; MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗'s technology team generated 2,700 powers of attorney automatically, 1,785 of them sent to BRB, and batch CCBs via scripts using CPFs from old databases, per InfoMoney and Seu Dinheiro on September 13.

    Material update: the total examined exceeds the R$ 12.2 billion in CCBs.

    Sources[06][07]
  7. Verified fact · material

    The Federal Police point to R$ 146.5 million in bribes to Paulo Henrique Costa, BRB's former president, executed through purchases of high-end property, a figure known since his arrest in April and now consolidated in the report, per InfoMoney and Seu Dinheiro; the defences of Vorcaro and Costa did not comment.

    Links the hole to corruption at the bank's top.

    Sources[06][07]
  8. Verified fact

    BRB issued a note calling itself a victim of criminal acts, asking not to be confused with former managers and citing a renewed executive board and an independent forensic audit with Machado Meyer and Kroll, per Seu Dinheiro; declassified technical notes show the Central Bank imposed on BRB, on October 15, 2025, a suspension of portfolio purchases and liquidity controls, with a plan due in 30 days and completion in six months, about a month before liquidating MasterBanco MasterOrganizationBrazilian mid-sized bank at the center of regulatory probes into asset valuation and funding, whose stress spread to counterparties such as BRB.Open in the Market Map ↗, per CNN Brasil.

    The bank's response and the supervision record.

    Sources[07][08]

Transmission to assets

Market read-through

2 billion as a loss to be covered by DF capital, a Union guarantee or the FGC.

For the system, it is the first official expert finding to quantify the fraud and support restitution actions.

Portfolio impact

02
Dívida e depósitos do BRBnegative

An official finding removes any recovery expectation and fixes the full loss.

Negative for creditors and for the DF as controller.

What would change the view: Mitigated if the Supreme Court orders restitution or the Union guarantees the injection.

direct60% confidence
Crédito a bancos médios e FGCnegative

A quantified fraud raises distrust of portfolio assignments between banks.

Higher risk premium for smaller issuers.

What would change the view: Depends on the BC's regulatory response.

sector40% confidence

Direction is an explanatory hypothesis, not a forecast or recommendation.

Next signals

What to watch

  • Mendonça's ruling on the DF's request to recover the R$ 12.2bn.
  • Responses from the Union, BC and FGC within Fux's deadline.
  • Publication of BRB's overdue statements with the portfolio marks.

Limits of the reporting

What remains uncertain

  • R$ 12.2 billion is the amount transferred between Dec/2024 and May/2025; g1's R$ 17.5 billion and O Globo's 90.3% are distinct cuts, accessible only as headlines.
  • The number of contracts examined is not uniform: CNN cites 100 contracts analysed by the BC; Poder360 does not specify the sample.
  • R$ 12.2bn (CCBs), R$ 17bn (fictitious operations) and R$ 20bn (incompatible transfers) are distinct cuts of the same report.

Full sources

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