# Identity Insights for Transactions
source: https://developer.mastercard.com/identity-insights-solutions/documentation/products/identity-insights-for-transactions/index.md

## Overview {#overview}

Identity Insights for Transactions (IIT) delivers a comprehensive set of insights and scores across all aspects of an identity - person, payment, and device. By incorporating insights within their risk assessment capability, businesses can deliver more sophisticated decisioning that caters for the particulars of their use-case and customer base, helping them reduce their exposure to fraud, and increase their prospects of success.

## Key Features {#key-features}

* **Person Insights (Primary and Secondary; Name, Email, Phone, Address):** Understand the risk associated with the data associated with the individuals conducting the transaction.
* **Payment Insights (Payment Credential, Transaction Details):** Understand the risk associated with the data associated with the payment credential used in the transaction.
* **Device Insights (IP, Device Characteristics):** Understand the risk associated with the device used to facilitate the transaction.
* **Combined Insights:** Understand the riskiness of a transaction when all aspects of the identity, person, payment, and device, are considered in combination.

## Good to Know {#good-to-know}

* IIT requires a commercial contract to be in place to access the Production service. 
* Review [API Basics](https://developer.mastercard.com/identity-insights-solutions/documentation/api-basics/index.md) for details on authentication and encryption.
* Review [Use Cases](https://developer.mastercard.com/identity-insights-solutions/documentation/use-cases/_index/index.md) to establish the sequence of calls.
* Try the reference app in the sandbox environment and receive mocked responses.
* Follow the Quick Start Guide to begin onboarding.

## Error Resolution {#error-resolution}

For details on error resolution refer to our [Code and Formats](https://developer.mastercard.com/identity-insights-solutions/documentation/code-and-formats/index.md) section.

## Next Steps {#next-steps}

Now that you have an understanding of what the service does, proceed to the [API Basics](https://developer.mastercard.com/identity-insights-solutions/documentation/api-basics/index.md) section for details on authentication and encryption.