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Keystone

hardwareactive

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

hardware_deviceactive
Keystone 3 Pro2026-08-15

Current Keystone touchscreen hardware wallet with QR-based air-gapped operation and device-held private keys.

Chronology

Lifecycle timeline

2021-06-01
rebranded

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.

Evidence: 1
2023-09-04
other

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.

Evidence: 1

Sources

Evidence

About Us
Keystone / Yanssie HK Limited · 2026-03-04
official_statementhighprimary