Wachovia

2004–2008> US$420 billion unmonitored

How did a top US bank end up moving cartel money without anyone noticing?

Wachovia sold wire, bulk cash and check-deposit services to Mexican casas de cambio (currency exchange houses) without an effective anti-money laundering program. In March 2010 it entered a deferred prosecution agreement with US prosecutors, admitting it failed to monitor more than US$420 billion in transactions. The bank forfeited US$110 million in drug proceeds and paid a US$50 million fine, US$160 million in total.

As of September 2026: The charge was deferred for 12 months from March 2010, and no conviction resulted; we could not confirm the closing court order from a primary source. Wachovia Bank merged into Wells Fargo Bank, which DOJ said was bound to continue the remedial measures. The figures here are those stated by DOJ in 2010.

What happened?

On March 17, 2010, US prosecutors announced that Wachovia Bank, N.A., then described by the Treasury’s financial crimes unit as recently the fourth largest commercial bank in the country, had entered a deferred prosecution agreement. The charge was that it willfully failed to run an effective anti-money laundering program from May 2003 through June 2008, in violation of the Bank Secrecy Act (BSA).

The center of the case was Mexican currency exchange houses, known as casas de cambio. Wachovia gave them correspondent banking services: wire transfers, bulk cash handling, and check deposit services. DOJ said Wachovia failed to effectively monitor more than US$420 billion in transactions with these customers.

A second, smaller problem was folded into the same deal. Wachovia admitted it failed to spot suspicious activity in accounts held for payment processors that served telemarketers. Those accounts took in more than US$418 million in remotely-created checks, and some checks were returned as unauthorized at rates above 40 percent.

Which techniques did it use?

The launderers did not need a clever trick. They used a bank service that let money move in huge volumes with little scrutiny. Exchange houses collected dollars and other instruments from their Mexican customers and passed them to Wachovia in three ways.

  • Wire transfers. DOJ said at least US$373 billion was wired from the exchange houses to Wachovia accounts between May 2004 and May 2007.
  • Bulk cash. More than US$4 billion in physical dollars was carried from Mexico to accounts at the bank.
  • Remote deposit capture. About US$47 billion in checks and traveler’s checks drawn on US banks was deposited through a scanning service.

Exchange houses sit near the middle of the drug-money cycle: they take in illicit cash from one side and convert it into ordinary bank balances on the other. That is why they appear in discussions of peso exchange schemes, although the DOJ release does not use that label. In this case, the failing was the bank’s, not just the customers’.

How was it found?

DOJ said the case grew out of a drug trafficking investigation. A DEA official said agents had seized drugs and followed the financial trail, which showed how the organization “capitalized on weak anti-money laundering practices” at the bank. The investigation involved DEA, IRS Criminal Investigation, FinCEN and the OCC, the bank’s national regulator.

Money that later bought aircraft used for cocaine trafficking was one part of that trail. More than 20,000 kilograms of cocaine were seized from those aircraft. The lesson for detection is that a bank’s own systems did not raise the alarm. Investigators reached the bank by tracing drug money backwards from the airplanes.

What was the outcome?

Wachovia agreed to forfeit US$110 million, which DOJ said represented drug proceeds laundered through the bank. FinCEN assessed a US$110 million civil penalty, deemed satisfied by that forfeiture. Under the agreement and separate OCC orders, Wachovia also paid a US$50 million fine. The total was US$160 million, due within five days. The prosecutor called it the largest penalty in any BSA case prosecuted to that date.

Prosecutors deferred the charge for 12 months, with dismissal promised if the bank met its obligations. Because the agreement was a deferred prosecution agreement, Wachovia never faced a conviction. A federal judge accepted the agreement in Miami. Wachovia Bank was set to merge into Wells Fargo Bank that month, and the agreement bound Wells Fargo as successor to continue the remedial work.

What were the warning signs?

The case is a checklist for compliance teams reviewing high-risk foreign customers.

  • Known risk, ignored. DOJ said Wachovia knew from 1996 that drug money was moving through exchange houses, and that other US banks had left the business. Wachovia kept expanding its business with them.
  • Volume that did not match the business. Hundreds of billions of dollars flowing through a handful of customers is a signal that needs an explanation.
  • Cash moved in bulk across a border. Physical dollars carried into US bank accounts are a classic placement route.
  • Due diligence left to sales teams. In the payment processor accounts, DOJ said the bank delegated most customer due diligence to business units rather than compliance staff.
  • High return rates. Checks returned as unauthorized at rates above 40 percent were a visible sign of trouble that the bank did not report.

What changed afterwards?

The case put correspondent banking, meaning services a bank provides to other financial institutions, under a harder light. Regulators said banks must match controls to the size and risk of their products. FinCEN’s director said Wachovia had not done so, despite its size and resources.

The case also raised a long-running debate. Wachovia paid a large penalty and no conviction resulted. Critics have argued that deferred prosecution agreements let big banks off lightly. Supporters say they force reform without destroying an institution. Later cases, such as TD Bank in 2024, moved toward tougher outcomes. For how banks are supposed to catch this activity, see the detection overview.

Frequently asked questions

What is a casa de cambio?

A casa de cambio is a currency exchange house. Legitimate ones convert pesos and dollars for travelers and businesses. DOJ's case was about exchange houses that used bank services to move very large sums into the US, which is why banks treat them as high risk.

Did Wachovia plead guilty?

No. It entered a deferred prosecution agreement. Prosecutors filed a charge but agreed to dismiss it after 12 months if the bank met its obligations, including paying US$160 million and fixing its controls.

Was this only about drug money?

The settlement also covered a second problem. Wachovia admitted it failed to detect and report suspicious activity in accounts of third-party payment processors that deposited more than US$418 million in remotely-created checks for telemarketers between 2003 and 2008.

How is this different from the HSBC case?

Both involved a large bank, cartel-linked money and a deferred prosecution agreement. HSBC's 2012 resolution involved a much larger penalty. Wachovia's 2010 case was, at the time, the largest penalty in any Bank Secrecy Act prosecution.

Techniques used in this case

  • Black Market Peso Exchange · A peso broker buys a cartel's US drug dollars at a discount and uses them to pay US exporters for Latin American importers, who repay the broker in pesos at home.

Related cases

  • HSBC and the Sinaloa cartel · Weak controls let Mexican and Colombian cartels move at least $881 million in drug money through HSBC, which paid a then-record $1.92 billion in 2012 to defer prosecution.
  • TD Bank · The first US bank to plead guilty to money laundering conspiracy paid about US$3.09 billion after three networks moved over US$670 million through its accounts.
  • Danske Bank Estonia · About €200 billion flowed through the Estonian branch of Denmark's biggest bank between 2007 and 2015, much of it suspicious non-resident money hidden behind UK shell companies.

Glossary

Sources

  1. Wachovia Enters into Deferred Prosecution Agreement (US Attorney's Office, Southern District of Florida (DOJ), March 17, 2010).
  2. Wells Fargo press release on the Wachovia settlement (Form 8-K exhibit) (Wells Fargo / SEC EDGAR, March 2010).