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Glossary

KYC

Plain-language definition Crypto glossary
Key takeaways
  • KYC, short for "Know Your Customer," is the process by which a regulated financial service verifies the identity of its users before letting them transact.
  • Users typically submit identification such as a government ID and proof of address, which the provider checks against official and sanctions databases as part of broader anti-money-laundering rules.
  • Centralized exchanges generally require KYC, while self-custodial wallets and decentralized protocols usually do not, creating a recurring tension between compliance and privacy.
Definition

KYC, short for “Know Your Customer,” is the process by which a regulated financial service verifies the identity of its users before letting them transact.

How it works

To pass KYC, a user typically submits identification such as a government ID and proof of address, which the provider checks against official and sanctions databases. It is part of broader anti-money-laundering (AML) rules. Centralized exchanges generally require KYC, whereas self-custodial wallets and decentralized protocols usually do not.

Why it matters

KYC is where crypto meets traditional regulation: it helps prevent fraud and illicit finance and is mandatory for most regulated platforms, but it also reduces the anonymity some users value. The tension between compliance and privacy is a recurring theme in the industry.

Example

Signing up to a regulated exchange usually means uploading an ID photo to complete KYC before you can trade.

FAQ
Frequently asked questions
Why do crypto exchanges require KYC?
KYC is part of anti-money-laundering rules that regulated platforms must follow. By verifying identities against official and sanctions databases, it helps prevent fraud and illicit finance, and it is mandatory for most regulated services.
Do all crypto services require KYC?
No. Centralized exchanges generally require KYC because they are regulated, but self-custodial wallets and decentralized protocols usually do not. This is one reason users weigh the trade-off between convenience, compliance, and the anonymity some value.
What information does KYC usually ask for?
A typical KYC check asks for identification such as a government-issued ID and proof of address. The provider then checks these details against official and sanctions databases to confirm the user is who they claim to be.
Related terms

Other glossary terms connected to this one.

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