Frozen Security Logo

Frozen Security

Titanium plate stores Bitcoin private key as hole pattern

Frozen Security - Product Image

What is Frozen Security?

Bitcoin promises ownership but the key always lives in a chip you can’t see or touch. Frozen Security replaces that chip with a titanium plate — your private key encoded as a pattern of holes in metal. A signing terminal reads the plate, signs the transaction in volatile memory, and clears everything immediately. No digital key stored anywhere, ever. The first time your Bitcoin is something you can actually hold.​​​​​​​​​​​​​​​​

How to use Frozen Security

  1. 1

    Prepare an unsigned Bitcoin transaction in the companion app on your smartphone.

  2. 2

    Hold your phone near the signing terminal (NFC) and insert the titanium plate.

  3. 3

    The terminal reads the hole pattern, derives the key in volatile memory, signs the transaction, and clears the key.

  4. 4

    Remove the plate; the signed transaction is passed back to the phone via NFC.

  5. 5

    Broadcast the signed transaction from the app to the Bitcoin network.

Key features

No digital key at rest — key derived in volatile memory and cleared after signing.

Two isolated microcontrollers: NFC layer physically disconnected from signing layer during signing.

Insert titanium plate, sign via NFC with no drivers or pairing required.

Companion app prepares transactions and broadcasts signed ones; signer never touches internet.

Browser-based BIP-39 entropy generator, seed visualizer, and hole-pattern decoder tools.

Use cases

  • Long-term cold storage of Bitcoin without digital key theft risk.
  • Inheritance planning: pass down a physical plate that can sign without digital exposure.
  • High-security transactions where no key residue is left on any device.
  • Leveraging existing physical security skills (safe, vault) to protect Bitcoin keys.
  • Multi-signature setups where each signer holds a distinct physical plate.

Best for

Bitcoin holdersSelf-custody advocatesSecurity-conscious usersLong-term investorsPhysical security enthusiastsEstate planners

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Frequently asked questions about Frozen Security

Common questions to help you decide if Frozen Security is right for you.

It’s a physical Bitcoin self-custody device that stores your private key as a hole pattern on a titanium plate. A terminal reads the plate to sign transactions in volatile memory, leaving no digital key ever stored. See site for details.

Hardware wallets keep a digital key on a chip, even if encrypted. Frozen Security has no digital key at rest; the key is derived at signing and immediately wiped, so it cannot be digitally stolen.

Without the plate you cannot sign. There is no digital backup. You must secure the plate physically, like cash. You can create multiple plates from the same seed phrase if desired.

No. You use a companion smartphone app that communicates with the signing terminal via NFC. The app prepares and broadcasts transactions but never accesses the private key.

The page does not specify open-source licensing. The browser tools run locally without transmitting data, but the signing terminal firmware may not be open source. Check the official site for the latest details.

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