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Disable Advertising ID

Risk

The risk

Why this matters

Your phone's advertising ID (IDFA on iOS, GAID on Android) is a persistent identifier shared with every app. Location data brokers like Fog Data Science use it to build movement profiles sold to law enforcement. It's a social security number for ads.

Setup guide

How to set it up

  1. 1

    On iOS: Settings → Privacy & Security → Tracking → disable "Allow Apps to Request to Track"

  2. 2

    This is the single highest-impact, lowest-effort privacy change on mobile