https://en.m.wikipedia.org/wiki/Usury

Usury (/ˈjuːʒəri/)[1][2] is the practice of making unethical or immoral loans that unfairly enrich the lender. The term may be used in a moral sense—condemning taking advantage of others' misfortunes—or in a legal sense, where an interest rate is charged in excess of the maximum rate that is allowed by law. A loan may be considered usurious because of excessive or abusive interest rates or other factors defined by the laws of a state. Someone who practices usury can be called a usurer, but in modern colloquial English may be called a loan shark.

The Sicilian Mafia or Cosa Nostra (Italian: [ˈkɔːzaˈnɔstra, ˈkɔːsa -], Sicilian: [ˈkɔːsa ˈnɔʂː(ɽ)a]; "our thing"[3]), also referred to as simply Mafia, is a criminal society originating on the island of Sicily and dates back to the mid-19th century. It is an association of gangs which sell their protection and arbitration services under a common brand. The Mafia's core activities are protection racketeering, the arbitration of disputes between criminals, and the organizing and oversight of illegal agreements and transactions.

https://en.m.wikipedia.org/wiki/Sicilian_Mafia