What is AML?
AML (anti-money laundering) is the set of laws, controls and monitoring that financial businesses apply to detect and block proceeds of crime from entering the financial system, including screening, transaction monitoring and suspicious activity reporting.
Also known as: anti-money laundering · AML compliance · AML monitoring
In plain terms
AML is the machinery that watches for dirty money: screening clients against sanctions lists, monitoring transactions for suspicious patterns and reporting concerns to authorities.
It works together with KYC — KYC establishes who the client is, AML watches what the client does.
How it works
Onboarding screening compares clients and their counterparties against sanctions, PEP and adverse-media lists before and during the relationship.
Transaction monitoring applies rules and models to flag unusual patterns — rapid in-and-out flows, structuring below reporting thresholds, transfers to high-risk jurisdictions.
When alerts confirm suspicion, the firm files reports to the financial intelligence unit and, where required, restricts or exits the client.
Example
Hypothetical: a token issuer's monitoring flags a subscriber whose funds arrived from a mixer shortly before subscribing. The compliance team requests source-of-funds evidence; it is not provided, and the subscription is cancelled and reported as required.
Why it matters for founders and investors
AML failures are among the most serious risks for any financial business — criminal liability, license loss and personal exposure for directors — which is why serious issuers build AML into their product from day one.
For investors, transacting with compliant counterparties protects them from tainted funds, frozen assets and the reputational fallout of being connected to illicit flows.
Common misconceptions
AML is not only for banks. Token issuers, exchanges, custodians and funds are regulated financial businesses in most jurisdictions and carry the same core obligations.
Compliance does not end at onboarding: monitoring is continuous, and a clean client at entry can still generate suspicious activity later.
Frequently asked questions
What is the difference between KYC and AML?
KYC is the identity-verification part — proving who the client is. AML is the broader program that uses KYC data to screen, monitor and report on money-laundering risk throughout the relationship.
Why was my transaction flagged?
Automated systems flag patterns statistically associated with laundering: unusual amounts, rapid movements, high-risk counterparties or jurisdictions. Most flags are cleared quickly after a brief explanation of the funds' origin.