# Sample secure customer data entry input in a call with no contact center agent
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**Note**  
This topic explains a sample flow that is included with Amazon Connect. For information about locating the sample flows in your instance, see [Sample flows in Amazon Connect](contact-flow-samples.md). 

Type: Flow (inbound)

This flow shows you how to capture sensitive customer data and encrypt it using a key. Here's how it works:

1. It begins by checking the contact's channel. If they are using chat, a prompt is played that this doesn't work with chat, and they are transferred to [Sample inbound flow](sample-inbound-flow.md).

1. If they are using voice, the **Store customer input** block prompts them to enter their credit card number. The block stores and also encrypts the data using a signing key that must be uploaded in a .pem format. 

   In the **Set contact attributes** block, the encrypted card number is set as contact attribute.

1. After the card number is successfully set as contact attribute, the customer is transferred back to the [Sample inbound flow](sample-inbound-flow.md).