TECHNICAL FIELD

This relates generally to the field of privacy protection, and more specifically to an apparatus that provides local man-in-the-middle firewall for privacy protection of electronic devices.

BACKGROUND

Smartphones are central to daily life. However, when third-parties (e.g., hackers) gain access to a smartphone (e.g., hijack), a user may not even notice the privacy intrusion. In particular, when the smartphone is connected to a radio frequency (RF) emitter for wireless access, e.g., a rogue base station or a fake WiFi access point that collects private information or plants malicious codes on the smartphone, conventional network security technics (e.g., firewall and/or virtual private network (VPN)) are inadequate. As such, the user would not know that the RF emitter in the middle of the communication path has misappropriated private information for malicious purposes.

