> For the complete documentation index, see [llms.txt](https://docs.lyzi.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lyzi.io/en/faq/problemes-de-paiement/paiement-bloque-ou-en-cours-de-verification-de-securite.md).

# Payment blocked or under security verification

Lyzi's security system automatically analyzes the origin of the funds sent. When it detects an anomaly, **the payment is put under verification** (KYT\_FAILED status) and the Lyzi team reviews it themselves.

{% hint style="danger" %}
**Do not serve the customer** (don't hand over the goods, tokens or service) **until Lyzi has got back to you.** Until the verification is complete, the payment must not be considered received.
{% endhint %}

### What to do

1. **Wait for Lyzi's response.** The decision is never made at the checkout. Lyzi gets back to you quickly during the day, or the next morning if the block happens at night.
2. **Stay neutral with the customer.** Don't make any assumptions about the origin of their funds. You can say:

> "The payment is being verified by the security system. The Lyzi team will get back to us."

3. **Invite the customer to write to Lyzi support** via **payer assistance**: the **blue button at the bottom right** of their payment page.

You have no other action to take while waiting.

### The two possible outcomes

| Outcome                                 | What happens                                                                                            |
| --------------------------------------- | ------------------------------------------------------------------------------------------------------- |
| **Payment accepted** after verification | The payment proceeds normally and your device displays "Payment validated".                             |
| **Payment refused**                     | You don't receive the funds. The customer, who has been debited, is **refunded by Lyzi within 2 days**. |

### Questions covered

* "My payment is blocked, why?"
* "Payment under verification"
* "KYT\_FAILED, what does it mean?"
* "The customer has been debited but the payment is blocked"
* "Can I serve the customer?"
* "Will my customer be refunded?"
* "Suspicious funds"
* "Security anomaly"


---

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