Warn of the risks. Link the white paper.

MiCA Article 66(3): CASPs must warn clients of the risks of crypto-asset transactions and, for key services, link the relevant white papers.

European Union MiCA Article 66(3)

The rule.

Regulation (EU) 2023/1114 on markets in crypto-assets (MiCA) · Article 66(3)

“warn clients of the risks associated with transactions in crypto-assets”

Verbatim extract, read on 4 November 2026 from the source below. Everything else on this page is NorthPoint’s plain-English reading.

What it requires.

  • Clients are warned of the risks associated with transactions in crypto-assets.
  • Providers that operate a trading platform, exchange crypto-assets for funds or other crypto-assets, give advice or manage portfolios give clients hyperlinks to the white papers of the crypto-assets concerned.

Who it applies to.

Crypto-asset service providers. The white-paper hyperlink duty applies to those operating a trading platform, exchanging crypto-assets, giving advice on crypto-assets or providing portfolio management.

Common violations in marketing copy.

Violation pattern · warning-free funnel

Sign up → deposit → buy in three taps, with no risk text anywhere in the flow

The client reaches a transaction without the risk warning the provision requires.

Violation pattern · asset page without white paper

A token page with chart, buy button and price — no white-paper link

For a trading platform or exchange service, the hyperlink to the white paper is part of the duty.

Non-compliant vs compliant.

Non-compliant · example written by NorthPoint

“Buy [Token] in seconds. No fuss.”

Compliant · example written by NorthPoint

“Crypto-assets are volatile and you can lose all of the money you put in. Read the [Token] white paper → before you buy.”

Related rules.

Source.

InstrumentRegulation (EU) 2023/1114 on markets in crypto-assets (MiCA)
ProvisionArticle 66(3)
Primary sourcehttps://www.esma.europa.eu/publications-and-data/interactive-single-rulebook/mica/article-66-obligation-act-honestly-fairly
Official texthttps://eur-lex.europa.eu/eli/reg/2023/1114/oj/eng
Read fromESMA Interactive Single Rulebook, one page per article (ESMA's own publication of the MiCA text)
Checked

This page is general, sourced information for marketing teams, not legal advice. The examples are written by NorthPoint to illustrate the rule; for a binding view on your own promotion, retain qualified counsel in the jurisdiction concerned.

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