# How can I use fingerprint?

**URL:** <https://forum.getkirby.com/t/how-can-i-use-fingerprint/6047>\
**Category:** Questions\
**Tags:** v2\
**Created:** [December 14, 2016, 9:47am UTC](https://forum.getkirby.com/t/how-can-i-use-fingerprint/6047 "2016-12-14T09:47:27Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![texnixe](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.getkirby.com/texnixe/32/5754_2.png) [@texnixe](https://forum.getkirby.com/u/texnixe)\
**Post date:** [December 15, 2016, 1:59pm UTC](https://forum.getkirby.com/t/how-can-i-use-fingerprint/6047/4 "2016-12-15T13:59:22Z")

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The fingerprint is stored in the session. When the session is started, the fingerprint is checked, and if the current fingerprint is not the same as the one stored in the session, the session is destroyed.

You can test this:

- Set your fingerprint in config.php
- Log into Panel
- Remove your fingerprint from config.php
- Reload. You are logged out from Panel

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