description Keycard Shell Overview
Keycard Shell is a physical, USB-connected device that generates and securely stores private keys for cryptocurrency transactions, offering a hardware solution to protect digital assets from online threats.
help Keycard Shell FAQ
How does the Keycard Shell communicate with mobile devices?
Keycard Shell communicates securely with mobile applications using Near Field Communication (NFC) technology. You simply tap the physical card against your NFC-enabled smartphone to sign transactions and manage assets.
Can the Keycard Shell hold multiple isolated cryptocurrency profiles?
Yes, the Keycard hardware allows users to create multiple distinct profiles or key sets on a single device. This is useful for maintaining separate hot wallets or isolating business and personal funds.
What happens if I enter the wrong PIN into my Keycard Shell?
The device is programmed to lock down after a certain number of incorrect PIN attempts to prevent brute-force attacks. You will be forced to use a designated PUK code provided during setup to unlock the card and reset your PIN.
Does the Keycard Shell keep my private keys exposed to the internet?
No, the primary function of the Keycard Shell is to generate and store private keys strictly within its secure hardware. Even when connected to an online device via USB or NFC, the keys never leave the card's isolated environment.
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