Banking Products and High-Risk Sectors

High-Risk Banking Products

Certain banking products concentrate laundering risk because they obscure parties or move large value across borders. The CAMS exam tests the typology and the specific control for each.

Correspondent banking lets one bank (the respondent) access services through another (the correspondent), often cross-border. The correspondent may have no direct visibility into the respondent's underlying customers. The chief dangers are nested accounts (a respondent quietly providing access to its downstream banks) and payable-through accounts (a respondent's customers transacting directly through the correspondent's account).

The mitigant is robust correspondent due diligence: know-your-correspondent, restrictions on nesting, and a prohibition on shell banks (banks with no physical presence and no affiliation to a regulated group), barred under the USA PATRIOT Act.

Trade finance funds international commerce through letters of credit and similar instruments. Trade-based money laundering (TBML) moves value by mis-stating price, quantity, or quality of goods.

Trade-Based Money Laundering in Detail

TBML is a favorite exam topic. The classic techniques:

• Over-invoicing — exporter overstates price to move extra value to the exporter's side.
• Under-invoicing — exporter understates price to move value to the importer.
• Multiple invoicing — billing repeatedly for one shipment.
• Phantom shipments — no goods move at all, only paperwork and payment.

Red flags include prices far off market benchmarks, goods routed through unrelated high-risk jurisdictions, shipments inconsistent with the customer's business, and amendments to letters of credit that change beneficiaries or value at the last minute. Because trade documents (invoices, bills of lading, packing lists) are easy to falsify and banks rarely see the physical goods, TBML is among the hardest typologies to detect, which is why the exam treats price benchmarking and trade-data analytics as essential controls rather than optional ones.

High-Risk Sectors

Beyond products, whole sectors warrant heightened scrutiny:

• Money services businesses (MSBs) — money transmitters, currency exchangers, check cashers; high cash volume and speed.
• Casinos and gaming — chips and credits can convert cash to apparently clean winnings; refining is the laundering analog of layering.
• Dealers in precious metals, stones, and art — high value, portability, opaque valuation.
• Real estate — large value, beneficial-ownership opacity, integration-stage favorite.

Worked Example

A correspondent bank notices that a foreign respondent's account is processing payments for several banks it never onboarded. This is nested activity — the respondent is reselling access. The correspondent should demand transparency, restrict or terminate the nesting, and assess whether a SAR is warranted. Doing nothing exposes the correspondent to the downstream banks' risk it never assessed.

Common Traps

• Assuming the correspondent can rely entirely on the respondent's controls — it cannot ignore nesting.
• Treating trade finance as low risk because documents look complete; TBML hides in pricing, not paperwork format.
• Forgetting that shell banks are prohibited, not merely high risk.
• Overlooking casinos and dealers in high-value goods as full obligated entities in many regimes.

The Wire Transfer Travel Rule

Wire transfers and modern real-time payment rails move value fast, which aids the layering stage. The control the exam tests is the Travel Rule: FATF Recommendation 16 requires that originator and beneficiary information "travel" with a transfer so each institution in the chain can screen and monitor it. Required data typically includes originator name, account/reference number, and address or other identifier, plus beneficiary name and account. Missing or meaningless originator information ("the customer") is itself a red flag and may require the receiving institution to seek the data, restrict, or reject the payment.

FATF has extended the Travel Rule to virtual asset transfers, so VASPs must collect and pass equivalent information.

Casinos, Refining, and High-Value Dealers

Casinos illustrate sector-specific laundering. A launderer buys chips with cash, plays minimally, and cashes out for a check described as "winnings" — converting cash to an apparently legitimate instrument. This is the gaming analog of layering and integration. In many regimes casinos are full obligated entities that must perform CDD and file reports above thresholds. Dealers in precious metals, stones, jewelry, and art present portability and opaque valuation; a single suitcase can hold enormous value, and prices are subjective, making over/under-valuation easy.

The art market specifically has drawn new obligations because anonymity and shell-company buyers obscure beneficial ownership.

Money Services Businesses and Nonprofits

Money services businesses (MSBs) — money transmitters, currency exchangers, check cashers, and crypto on-ramps — combine high cash volume, speed, and often a global agent network the principal cannot fully see. Controls include agent due diligence, transaction limits, and monitoring for structuring across agents. Nonprofit organizations (NPOs) can be abused for terrorist financing through cross-border disbursements to high-risk regions; FATF cautions against treating the entire NPO sector as high risk, instead requiring a targeted, risk-based approach so legitimate charities are not de-risked out of the system.

As always, identify the product or sector, name its core typology, and select the matching control rather than reflexively exiting the relationship.