DataSentry: Module III

OTP Firewall Controls

• Stop OTT Apps from Stealing Your A2P OTP Revenue

  Mobius DataSentry – Module III (OTP Controls) is purpose-built to disrupt Over-The-Top (OTT) applications that bypass Mobile Network Operators and aggregators to deliver One-Time Passcodes (OTPs) outside of monetized routes.

  This is the largest uncontrolled OTP leakage point in most mobile networks today — and for many operators, it remains completely unmonitored.

  Proven Revenue Impact

  • A greater than 15% increase in MNO and aggregator OTP revenue has been achieved in live deployments

  • Disruption of 50+ applications using OTT channels to deliver OTPs

  • Effective against major OTT platforms, like

    WhatsApp, Telegram, IMO, Viber, and RCS.

    Restores OTP traffic back to authorized, billable operator routes

  This is not just detection — Module III actively disrupts unauthorized OTP delivery and forces traffic to be redirected to monetized channels.

• Experience Counts

  Module III is not theoretical. It is the result of years of live deployments and continuous refinement.

  Why DataSentry Works

  • Highly refined OTP signature detection, continuously improved

  • Proprietary disruption mechanisms that maximize impact while minimizing collateral disruption

  • AI and Machine Learning models that solve complex and previously unidentifiable OTP patterns

  • Ongoing testing and validation to ensure signatures remain effective as apps evolve

  Our system works — and it improves every day.

• The Result

  Mobius DataSentry – Module III (OTP Controls) restores control over OTP authentication, closes the OTT bypass gap, and returns lost revenue to Mobile Network Operators and their aggregator partners.

  This is the missing control layer in modern A2P and authentication protection.

• How OTP Authentication Really Reaches Subscribers

  OTP authentication traffic reaches subscribers through four major routes. Most MNOs only control three of them.

  1. Flash Calls

  • Typically the least expensive route

  • Controlled using a Voice Firewall (flash-call detection)

  2. OTT Data Path (Uncontrolled for Most MNOs)

  • OTPs delivered via messaging apps over mobile data

  • No SMS termination, no billing, no visibility

  • Mobius Module III is a proven solution for disrupting this route

  3. Unauthorized SMS Routes

  • Gray or bypass routes

  • Managed using an SMS Firewall

  4. Authorized SMS Routes

  • Fully monetized A2P routes

  • Also managed via an SMS Firewall

• The Hidden Problem: OTT OTP Bypass

  In extensive real-world testing across multiple networks, Mobius collected clear evidence that:

  • Over 75% of the top 50 revenue-producing applications have the technical ability to deliver OTPs via OTT channels

  • In networks without OTT OTP controls, this route remains:

  • Unmonitored

  • Uncontrolled

  • Unmonetized

  Plainly stated:
  If you are not monitoring and controlling the OTT OTP path, you are leaking significant revenue.

• DataSentry Module III: Active Disruption, Not Just Visibility

  Mobius DataSentry Module III takes command of OTP delivery by:

  • Identifying OTP signatures across OTT data traffic

  • Actively throttling and disrupting unauthorized OTP delivery

  • Forcing authentication traffic back to:

  • Authorized SMS routes

  • Monetized operator pathways

  Once disrupted, applications naturally migrate back to approved delivery mechanisms — restoring control and revenue to the MNO.

Independent test have shown that WhatsApp and RCS are taking 60% of all the OTP revenue from the MNOs

Our Module II & III has proven to disrupt these messages in real-world deployments!

We encourage MNOs, CPaas providers, and Aggregators to contact us and learn more about DataSentry Module III