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Steal Your Life Using 5 Cents: Hacking Android Smartphones with NFC Tags

Nowadays, privacy in the connected world is a big user's concern. The ubiquity of mobile devices permits billions of users to browse the web at any time, anywhere. Near Field Communication (NFC) appeared as a seamless communication protocol between devices. Commercial services such as Android Pay and Apple Pay offer contactless payment methods that are spreading in more and more scenarios. However, we take risks while using NFC on Android devices, we can be hacked, and our privacy can be affected. In this paper, we study the current vulnerabilities in the NFC-Android ecosystem. We conduct a series of experiments, and we expose that with NFC and Android devices are vulnerable to URL/URI spoofing, social network information hacking, and user's device tracking via fingerprint and geolocation. Smart devices based on NFC communication should inform and protect the users about the privacy risks using these contactless services.