Today, while using a Ledger Nano S — I was shocked to see this scary message after I left my ledger nano s for few minutes while a transaction was confirming. The message was scrolling horizontally saying “**_Vires in Numeris_**”

If the Auto-Lock feature is activated, your Nano S will enter into stand-by mode after a delay you can choose (1, 3, 5 or 10 minutes). Then, each time your Nano S will be connected and not used during this selected delay, it will run stand-by mode. When you want to use again your device, you will have to press both buttons and re-enter your PIN code.

1.  Open the “Settings” of the Nano S
2.  Select “Security”
3.  Select “Auto-lock”

![](https://hackernoon.com/hn-images/0*MUawmxgw5E7Vc7nj.)

Scroll to choose your favorite delay and press both buttons to validate or select OFF if you do not want to set this mode

![](https://hackernoon.com/hn-images/0*gQmhjrTzpMIV56T2.)

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> Disclosure: This article is based on information provided on [Ledger Nano FAQs](https://ledger.zendesk.com/hc/en-us/articles/115005165589--Vires-in-numeris-message) and few reddit posts. Worked for me — It is for informational and educational purposes only. I am not responsible for any effects or loss of your funds.

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