Unified Communications Service for SIM Swap Authentication
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Solution Overview
Problem
Current mobile communication protocols and authentication techniques lack a technical means to reliably determine if a receiving device has experienced an unauthorized SIM swap, allowing malicious actors to intercept sensitive authentication codes and access user accounts.
Innovation Solution
The implementation of a unified communications service that selectively modifies or redirects certain messages, such as authentication codes, by dividing them into portions and delivering them through different channels, allowing the legitimate user to reconstruct the code while preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication codes are sent through standard SMS channels, then ease of operation is improved, but security is worsened due to SIM swapping vulnerability
Solution Approach 1:
The authentication code is divided into multiple segments or portions, each sent through different communication channels (e.g., SMS, email, push notification). The complete authentication code can only be reconstructed when all segments are combined, preventing unauthorized access even if one channel is compromised through SIM swapping.
Solution Approach 2:
A unified communications service acts as an intermediary between the authentication system and the user. This service manages the segmentation, distribution, and recombination of authentication code portions across multiple channels, adding a layer of security while maintaining ease of operation for legitimate users.
2Reliability
If authentication codes are divided and sent through multiple channels, then security is improved, but device complexity increases
Solution Approach 1:
The unified communications service performs multiple functions: it segments authentication codes, manages multiple communication channels, tracks delivery status, and facilitates code recombination. By consolidating these diverse functions into a single multi-functional platform, the system achieves enhanced security without proportionally increasing overall complexity.
Data Source
AI summary
A system and method for preventing fraudulent access to user accounts and user data resulting from SIM swapping are disclosed. A server providing a unified communications service receives a message containing an authentication code addressed to a subscriber mobile device. The server determines a threat level by analyzing recent subscriber login data for suspicious patterns. If the threat score exceeds a threshold, the server divides the authentication code into two portions before sending. One portion is transmitted via regular SMS to the native messaging app on the subscriber's device. The other portion is sent through a subscriber messaging client of the unified communications service. This dual channel delivery allows legitimate users to receive the full code while preventing unauthorized users who may have swapped the subscriber's SIM card. Additional threat detection involves monitoring the status of the native messaging app and notifying subscribers of anomalies indicating potential SIM swapping.