Wallet dossier
Keystone
Self-custody hardware wallet brand operated by Yanssie HK Limited, focused on air-gapped signing devices and supporting software infrastructure.
- Developer / company
- Yanssie HK Limited
- Origin
- Hong Kong
- Launch
- 2018
- Custody
- self_custody
- Confidence
- high
- Last verified
- 2026-08-15
Product family
Products
Chronology
Lifecycle timeline
Cobo Vault rebranded as Keystone
Keystone's official support documentation states that Cobo Vault was rebranded as Keystone on June 1, 2021 after the original hardware-wallet team left Cobo to create Keystone.
Keystone 3 Pro released in 2023
Product: Keystone 3 Pro
Keystone's first-party product history and official Keystone 3 firmware release lineage establish Keystone 3 Pro as a released product during 2023.
Keystone 3 Pro publicly introduced in official product design article
Product: Keystone 3 Pro
Keystone published its official Keystone 3 Pro product-design article as part of the 2023 Keystone 3 rollout chronology following the July forthcoming-launch announcement.
Keystone publicly detailed the Keystone 3 Pro
Product: Keystone 3 Pro
Keystone published a first-party product article detailing the Keystone 3 Pro hardware wallet and its community-driven design and security architecture.
Sources