Myriad Group AG has launched a new service to find the growing threat of SIM-Swap fraud. Myriad's service can help to reduce SIM-Swap by providing a real time check on the SIM, which cannot be tampered with via compromised third parties within an operator or bank. Using USSD (Unstructured Supplementary Service Data) authentication, no persistent data is held with any third party, providing a more secure service than current two factor authentication services, for example using SMS, where data is stored and therefore vulnerable to being intercepted. A clear audit trail is also established, where the user's identity is verified by a party external to the transaction. This results in a technology that will greatly enhance the security of transactions vulnerable to SIM-swap fraud.