Protection against SIM swapping and ID theft


Our mobile phone numbers are increasingly becoming a unique method of personal identification and more and more companies and services are relying on smart devices as a means of authentication, such as 2-step verification.

It is estimated that over $50mn was stolen from crypto wallets in the US in 2018/2019 using SIM swapping. 

Scammers who take control of the number can easily complete verification checks that protect our most sensitive information. The most common method of phone scamming is via SIM swapping. This is when a scammer convinces an operators to swap over a subscribers’ number to a new SIM, resulting in the genuine customer being disconnected and all data being sent to the new, ‘fake’ SIM.

A solution to prevent SIM swapping

FIX Network was established to provide a solution that allows mobile subscribers to secure private keys and transactions on SIM cards. FIX leverages existing cellular infrastructure by implementing a blockchain-based security protocol to support new privacy, security, management and safety solutions for mobile subscribers via SIM. 

This unique architecture will allow mobile operators to deliver services such as digital identity management, cryptocurrency wallets, and personal data firewalls, all enabled by the safekeeping of private keys on the subscribers’ SIM cards

“We have numerous and stringent expectations of the blockchain technology that we will employ together with our mobile operator partners in order to deliver the FIX Network solution globally.

Our exhaustive search for an appropriate platform led us to converge on NEM’s Symbol, as we are confident as this technology includes the features, security, reliability and interoperability between private and public blockchain networks to fulfil our current and future requirements. We are proud of our technology partnership with NEM.”
Edwin Terek
Co-Founder, FIX Network

Benefits & Outcomes

The solution from FIX enables secure control:

  • Blockchain-based Digital Identity
  • Blockchain-based Security Policy
  • Geo-location and geo-fencing
  • Personal Network Firewall
  • Parental Control
  • Real-time alerts and data usage control
Further Info

We are rapidly evolving into a digital and decentralized society, and private keys on mobile devices will play a central role in securing our digital identities and daily interactions.

We see a huge gap between the requirements for the mass adoption of this transformation, and the security levels offered by solutions available today.

Users must be confident, comfortable and feel safe to use personal mobile devices for transferring while still retaining full control over their assets, data and other important aspects of their lives.

FIX Network will utilize and leverage the existing cellular infrastructure by defining and implementing a new blockchain-based security protocol. This architecture will enable mobile operators to provide a safe environment for protecting our identities and digital assets such as cryptocurrency.

We believe that private keys should be stored on users’ standard SIM cards. Our technology will enable safe transaction signing by the SIM card itself, never exposing users’ private keys.

All of our components will be released as open-source and can be rapidly deployed by mobile operators worldwide. We believe that the operators are the perfect partners to adopt and promote this technological initiative, as they are highly regulated and compliant with strict procedures required to secure more than 8 000 000 000 SIM cards in use today.


The project is live and available online:

Researched by Antony August 2023

© Antony Welfare 2024