Building a Cross-Platform Shadow Profile
Ad brokers collect data from hundreds of different apps installed on a single device. Since the device identifier is shared across the entire system, analytics companies match search queries, geolocation, purchase history, and build a detailed digital profile of the specific user to sell to advertisers.
How to Limit Ad Tracking on Your Phone
- Reset or delete your advertising ID in Android system privacy settings.
- Enable the app tracking transparency toggle in Apple device privacy settings.
- Disable ad personalization and diagnostic data collection in your system account settings.
- Restrict installed apps from reading running processes and network information.