Talking Behind Your Back - Attacks and Countermeasures of Ultrasonic Cross-Device Tracking

Explore the world of ultrasonic cross-device tracking in this Black Hat conference talk. Delve into the technologies marketers use to track user content across multiple devices for targeted advertising. Learn about the workflow of cross-device tracking, proximity marketing, and Google Cast. Witness demonstrations of attacks like Beacon Trap and Beacon Injection, and understand how data is obtained from providers. Examine the ecosystem surrounding these technologies, including browser extensions and Android permissions. Discover potential solutions and benefits to counter ultrasonic tracking. Gain insights into this cutting-edge marketing tool and its implications for user privacy and security.

Intro
CrossDevice Tracking
What is CrossDevice Tracking
How do they work
Workflow diagram
Proximity marketing
Google Cast
The moment of realization
Demonstration
Story
Demo
Beacon Trap
Beacon Injection
Fast Attack
Getting data from providers
Ecosystem
Browser Extension
Android Permission
Solution
Benefits
Summary
Conclusion
Questions
Anti ultrasound box