Subscriber identification module (SIM) authentication protections

A method for computer authentication of a user request for a Subscriber Identity Module (SIM) card transfer by a biometric signature from a UE, comprising:

• assigning a risk score, by a mobile service provider, to a user account based on user activity in the user account, wherein the user activity includes a request for SIM card transfer authorization, wherein the request for SIM card transfer authorization requests a SIM swap from a current SIM card to a swap SIM card;
• registering, by the mobile service provider, the swap SIM card to the user account;
• in response to the request for SIM card transfer authorization, requesting a biometric signature, by the mobile service provider, from an authentication application executing in memory on the UE;
• capturing a biometric signature, by the authentication application, on the UE;
• encrypting, by the authentication application, the biometric signature, wherein the encrypted biometric signature comprises a hash;
• sending the encrypted biometric signature, by the authentication application, to the mobile service provider, with a wireless communication protocol;
• comparing, by the mobile service provider, the encrypted biometric signature to an authorized signature, wherein the authorized signature comprises a previously submitted biometric signature associated with user account;
• modifying the risk score, by the mobile service provider, based on comparison of the encrypted biometric signature to the authorized signature;
• and
• in response to the modified risk score being a high risk score, reversing, by the mobile service provider, the SIM swap by deregistering the swap SIM card from the user account, wherein the modified risk score has a high risk score when the encrypted biometric signature does not match the authorized signature.