Why Do We Have Fingerprint Scanners on Our Phones?

Imagine your fingerprint is like a secret code only you know. A fingerprint scanner reads that code when you touch it, and if it matches the one stored on your phone, your phone unlocks. It's like having a special key hidden inside your finger.

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Examples

  1. Your phone unlocks the moment you touch it because your fingerprint is like a secret code.
  2. A fingerprint scanner reads tiny ridges and valleys on your finger to know it's you.
  3. Even if someone steals your phone, they can't unlock it unless they have your fingerprint.

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