> For the complete documentation index, see [llms.txt](https://docs.casa.io/wealth-security-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.casa.io/wealth-security-protocol/chosen-features/pin-for-every-device.md).

# PIN for every device

Hardware key managers provide the option to lock usage of the devices with **short numeric PINs**. These provide an essential layer of security against theft so that physical possession of a hardware key is not enough to activate the device. Hardware devices will wipe themselves after a certain number of incorrect PIN guesses, protecting against an attacker brute-forcing the PIN.

We recommend that Casa clients use the same PIN for every device to prevent confusion and accidental lock-out. We also highly recommend storing your PIN in a secure password manager to prevent losing it. For premium clients, Casa also offers the option of storing a copy of your PIN to further prevent loss.