Former Nodus International Bank CEO Tomás Niembro Concha pleaded guilty to leading a scheme that siphoned at least $24.9 million from the Puerto Rico-based lender. Court filings say the scheme hid conflicts in investments and loans and contributed to the bank's collapse in 2023. The article also says Niembro is accused of taking part in transactions tied to Venezuela's state-owned oil company despite U.S. sanctions.