## What is Prefill?  
The **Prefill** module provides fast and trusted identity autofill, powered by the **Identity Graph**. With only a few pieces of personally identifiable information (PII), Prefill can automatically return complete and verified identity details such as **name, date of birth, and address**.

This capability:

- Accelerates onboarding
- Reduces manual entry
- Enriches user profiles
- Blocks synthetic or mismatched identities at the door

At the core of Prefill is **SocureID**, a graph-resolved identifier linked to a real person, confirmed across credit, alt-data, government, and behavioral sources. If inputs can’t resolve to a SocureID, **no data is returned**.

| Enrichment | Input fields | Signals returned | Coverage | Best for |
| --- | --- | --- | --- | --- |
| **Prefill** | - First name + last name<br>- Plus one additional PII signal (SSN/ITIN, phone + DOB, email, or address + ZIP) | Best-matched identity record (full name, DOB, address, etc.) | United States (all listed inputs) International (Phone + DOB) | Internal use cases such as back-office pre-population and enrichment for agent review or decisioning logic |

> 📘  
> **Note:**  
> Prefill is an enrichment step that accelerates form-fills with verified identity data, while Advanced Prefill adds real-time risk intelligence to stop fraud and maximize conversion. For details on Advanced Prefill setup, refer to the [Advanced Prefill Solution Guide](https://help.socure.com/riskos/docs/onboarding-with-advanced-prefill).

## What you can do with Prefill  
Prefill is designed to enhance onboarding flows, improve user experience, and enrich customer data. Developers typically integrate Prefill in the following scenarios:

- **Onboarding Optimization** Minimize friction during account creation by auto-populating identity details (such as name, DOB, and address) from just a few PII inputs like phone or email. This reduces manual typing and improves completion rates.
- **Verified Autofill** Replace self-entered data with trusted, graph-resolved identity attributes. Prefill ensures that returned details are accurate and consistent across sources, reducing errors from typos or incomplete submissions.
- **Profile Enrichment** Expand and enhance existing customer records with additional, verified attributes. Prefill can surface associated emails, historical addresses, or linked phone numbers, helping you build a more complete picture of your user.

## Unique Features  
- **Scalable identity resolution**: Leverages Socure’s large-scale identity graph to resolve individual identities with high precision and minimal conflict.
- **Multi-source data ingestion**: Ingests signals from credit, alternative, behavioral, and government data sources to enrich profiles and return verified, high-confidence matches.
- **Decision-level transparency**: Every verification decision includes detailed source attribution, ensuring trust in autofill results.
- **Dynamic match optimization**: Adapts match logic based on input type, regional factors, and use case—balancing speed, accuracy, and fraud resistance in real time.
- **Cross-journey identity linking**: All results are anchored to a persistent SocureID, enabling consistent resolution and fraud prevention across channels.
- **No partials, no guesses**: Only returns results when all inputs resolve to a single verified SocureID.
- **Synthetic-proof**: Blocks synthetic or fabricated identities to ensure autofill is always accurate and trustworthy.
- **Conflict handling**: If input signals disagree, Prefill returns nothing, eliminating the risk of populating incorrect identity data.

Updated about 1 month ago