Device Swap

Device Swap API provides real-time insight into whether the SIM linked to a phone number has been moved to a different physical device.
It’s designed to strengthen fraud and account-takeover defenses by feeding risk scoring and triggering step-up verification on sensitive actions.

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In a nutshell

Offering clear and structured swap event information

This API improves security, aids in fraud detection, and ensures regulatory compliance by providing detailed and organized data on device swap events.

This API provides a device swap check function that allows users to verify if a device swap has occurred within a given timeframe. And also a retrieve date function that returns the exact timestamp of the last device swap event. Last but not least, a subscription-based notification service to notify subscribers when a device swap event is detected.

Benefits

Enhanced Security and Fraud Prevention

Rapidly detect unauthorized use of SIM cards in new devices. By monitoring device swap events in real time, businesses can immediately identify and respond to potential fraud attempts before damage occurs.

Regulatory Compliance

Assists businesses in fulfilling privacy and security obligations by monitoring device changes.

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Improved Customer Experience

Enables applications to adapt to new devices, ensuring smooth service transitions. When a legitimate device swap is detected, services can proactively guide users through re-authentication, minimizing friction while maintaining security.

Use cases

Financial security

Financial institutions can identify device swaps to avert unauthorized transactions, prompting extra authentication when needed. Online services bolster identity security by necessitating re-authentication when a device change is detected, ensuring that only legitimate users can access their accounts.

Corporate compliance

Organizations overseeing corporate mobile plans track device usage to verify that employees are utilizing company-issued lines on approved devices, thereby ensuring security and compliance.

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Frequently Asked Questions

Device Swap provides real-time information about whether the SIM associated with a phone number has been moved to a different physical device. It helps you detect suspicious changes and strengthen security during sensitive user journeys.

Check within a timeframe: Answers “Did a device swap happen in the last X hours/days?”—ideal for simple fraud rules and decisioning.
Retrieve the last swap date: Returns the timestamp of the most recent swap—useful for more granular policies (e.g., different thresholds depending on transaction risk).

They cover different fraud patterns:
SIM Swap detects that a line has moved to a new SIM (often linked to OTP interception).
Device Swap detects that the SIM/line has moved to a new device (useful for account takeover and suspicious device changes).
They are often combined in a layered approach (along with Number Verification) for stronger protection.