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How Vulns in Global Transportation Payment Systems Cost You

Omer Attias

Omer Attias dissects API vulnerabilities in popular mobile transit payment apps like Moovit, demonstrating fare evasion and passenger PII data leakage.

Summary

The Rise of Mobile Public Transit Ticketing

Transit agencies worldwide have rapidly adopted smartphone applications to streamline fare payments, ticket validations, and route planning across thousands of metropolitan areas.

Reverse Engineering the Moovit Mobile API

Omer Attias audits the API backend of Moovit, a mobility application serving hundreds of millions of users across 100+ countries, inspecting encrypted mobile traffic.

Exploiting Fare Validation and Payment Logic

Flaws in ticket issuance endpoints and authorization tokens allow malicious actors to generate valid transit passes without charge and manipulate billing assignments onto third-party accounts.

Harvesting Passenger Personally Identifiable Information

Insecure direct object references (IDOR) in passenger profiles allowed unauthorized extraction of customer PII, highlighting critical security requirements for smart city infrastructure.

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