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Banco Central do Brasil
The method utilized in robbing the Central Bank of Brazil is no less impressive: over the course of three months, a group of specialized robbers managed to dig a 255 feet tunnel directly under the vault room of the bank. Once the tunnel was finished, they disabled the alarm systems of the vault room and stole five huge containers of cash over the weekend. Since the cash was not sequentially numbered, it was impossible for the Brazilian authorities to trace them.
