SIM Swap Prevention

Detect SIM Swap events, silently in real-time. Prevent identity theft and stop account takeovers before they happen.

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BLOCK FRAUD BEFORE IT HAPPENS

As the world moves to mobile-first, SIM swap fraud is becoming an increasingly common fraud mechanism. Through social engineering, bad actors can impersonate their victim and trick a mobile operator into issuing them a new SIM card. That allows them to take over the victim’s mobile number and intercept SMS OTPs, so they can reset passwords, and gain control of their online accounts.

With IDlayr SIM Swap Prevention, you can completely block this attack vector. IDlayr provides you with real time SIM change detection, from direct connections to MNO systems. This gives your team a crucial signal to act on – before fraud occurs.

 

Why It Matters

Stay ahead of fraud without adding friction for users.

  • SNA and SMS OTP are both vulnerable

    • If you're using SMS or Silent Network Authentication for mobile number verification, then you are exposed, because both are only verifying the mobile number, not the SIM card identity.

  • Prevent SIM Swap attacks at source

    • With IDlayr SIM Swap Prevention, we check the SIM card identity in real-time, directly with the mobile network operator. That means you can detect a change instantly and prevent SIM Swap fraud before it happens.

  • Balance security with user experience

    • IDlayr SIM Swap prevention can be triggered at any time without needing user involvement. The result can be used to trigger step-up authentication only when needed, keeping friction as low as possible for legitimate users.

IDlayr SNA

How it works

IDlayr checks for recent SIM card changes through a direct, real-time query to the mobile network operator (MNO), providing an instant and trustworthy risk signal.


  • Your system sends a verification request to IDlayr’s API.
  • IDlayr queries the live MNO database for the latest SIM change information.
  • IDlayr provides the result back to you via API.
  • If the change is recent, your team can flag, block, or apply extra checks.
  • All results are returned instantly - with no caching and no user input required.

SNA and SMS OTP alone

With IDlayr SIM Swap Prevention

Only verifying the mobile number (not the SIM card identity) Real-time SIM Swap check, performed directly on live MNO database Vulnerability to SIM Swap attacks means serious risk of identity theft and account takeover Having a SIM change signal, allows you to prevent SMS interception and SNA spoofing, blocking identity theft and account takeover before they happen Inability to distinguish low risk from high risk users means all users suffer higher friction security checks Minimize friction for the majority of users by only doing step-up checks if a SIM Swap is flagged

 

Where It’s Used

  • Banking

    • Detect and prevent fraudulent access to accounts before transactions are initiated.

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  • Fintechs

    • Add an extra layer of protection during password resets or device changes.

  • eCommerce

    • Automatically escalate risky sessions for additional user verification.

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