Corruption Probe Into Failed Banco Master Expands to Target High-Profile Brazilian Senator

Federal authorities in Brazil have intensified their investigation into the collapse of Banco Master by targeting Senator Ciro Nogueira, a powerful political figure and former chief of staff to Jair Bolsonaro. On May 7, 2026, police executed search and seizure warrants at Nogueira’s properties following a Supreme Court ruling.

The investigation, known as Operation Compliance Zero, is looking into a massive financial fraud scheme that led to the bank’s liquidation in late 2025.

Key details of the expanding probe include:

  • Allegations of Bribery: Supreme Court Justice André Mendonça authorized the warrants, citing evidence that Nogueira allegedly used his political influence to benefit Banco Master’s owner, Daniel Vorcaro, in exchange for illegal financial kickbacks.
  • Political Escalation: This move marks a significant shift in the investigation, moving from the financial sector directly into the heart of Brasília’s political elite. Nogueira is the head of the Progressives (PP) party and remains a key figure in the opposition.
  • A Massive Financial Scandal: Banco Master was shut down by the Central Bank in November 2025 after a liquidity crisis revealed a fraud estimated at 12 billion reais ($2.2 billion). The fallout has affected over 1.6 million depositors and required a historic bailout from the Credit Guarantee Fund.
  • Previous Arrests: The bank’s owner, Daniel Vorcaro, is already in custody. He faces charges not only for financial crimes but also for allegedly plotting to physically intimidate a prominent journalist who was covering the bank’s troubles.

Senator Nogueira has not yet issued a formal statement regarding the raids. The investigation continues to scrutinize ties between the failed lender and several high-ranking government officials and judicial figures.