description Coldcard Mk2 Overview
The Coldcard Mk2 is a passive USB-C hardware wallet designed for secure storage of cryptocurrency private keys by minimizing external connections and utilizing a shielded enclosure to protect against electromagnetic interference.
help Coldcard Mk2 FAQ
How does the Coldcard Mk2 keep cryptocurrency safe?
The Coldcard Mk2 protects cryptocurrency by storing private keys entirely offline in a shielded hardware enclosure. It minimizes external connections and utilizes a passive USB-C interface to ensure the keys are never exposed to internet malware.
Can the Coldcard Mk2 connect to the internet via Wi-Fi or Bluetooth?
No, the Coldcard Mk2 is completely air-gapped and lacks any Wi-Fi or Bluetooth networking capabilities. By design, it strictly limits external connections so that remote hackers cannot reach the private keys stored inside the device.
What type of connection does the Coldcard Mk2 use to communicate?
The hardware wallet uses a passive USB-C connection to interface with computers or power sources when a transaction must be signed. This physical connection ensures that data only flows when the user explicitly authorizes it.
Is the Coldcard Mk2 protected against physical tampering?
Yes, the device utilizes a shielded enclosure specifically designed to protect against electromagnetic interference and physical tampering. This extra layer of security helps defend the wallet against sophisticated local side-channel attacks.
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