Payments Bible

Suspected Fraud

What it means

The issuer or acquirer suspects the transaction is fraudulent and has declined it.

Why it happens

Risk checks flagged the transaction as likely fraudulent based on patterns, location, or a high fraud score.

If you’re the cardholder

Contact your issuer to verify the transaction is legitimate before trying again.

If you’re the merchant

Do not retry; present a generic decline and avoid disclosing the fraud reason.

Sources & processor codes

  • Adyen20FRAUDDocs
  • ISO 858359Suspected fraudDocs
  • NuveiSuspected fraudDocs
  • StripefraudulentThe payment was declined because Stripe suspects it's fraudulentDocs

← All decline reasons