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Keystone

Keystone is a provider of air-gapped hardware wallets for secure cryptocurrency storage and management.
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Description

Keystone (originally Cobo Vault) offers advanced hardware wallets with multi-coin support, featuring air-gapped technology and QR code-based transactions for enhanced security. Their products, including the Keystone 3 Pro, utilize multiple secure elements for seed generation and storage, providing a high level of protection for users' digital assets.