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blog/posts/biometrics-explained.md
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@ -44,10 +44,9 @@ There are [three](https://www.androidauthority.com/how-fingerprint-scanners-work
An optical sensor works by taking a picture of your fingerprint and turning it into data. They are the cheapest and least secure option. Since optical sensors capture two-dimensional images, an attacker may gain access by simply taking a picture of your fingerprint.
<figure markdown>
![Diagram showing a closeup of how an optical fingerprint sensor works by reflecting light off the skin](../assets/images/biometrics-explained/optical-diagram.jpeg)
<figcaption>source: <a href="https://clockit.io/fingerprint-scanner/">clockit.io</a></figcaption>
</figure>
![Diagram showing a closeup of how an optical fingerprint sensor works by reflecting light off the skin](../assets/images/biometrics-explained/optical-diagram.jpeg)
<small aria-hidden="true">Image Credit: <a href="https://clockit.io/fingerprint-scanner/">clockit.io</a></small>
Many devices implement one of these sensors under the display.