Distributed Sys Digital
Device rotation, reviewed against the fleet you actually hold.
We walk Hong Kong treasury and custody teams through offline wallet inventories — serial by serial — so rotation decisions rest on what is in the room, not what is on a spreadsheet.
Flagship engagement
Hardware-wallet fleet review
A structured session for teams that keep cold storage across multiple signing devices. We compare each unit against your rotation policy: firmware age, passphrase posture, last recovery drill, physical location, and who holds the spare.
You leave with a signed-off device rotation checklist — not a product login.
Review scope and inclusions →
Related work
What teams usually book next
Device rotation checklist workshop
A facilitated half-day for teams writing or refreshing the rotation rules that govern when a hardware wallet must leave service.
Firmware & inventory baseline
A quieter engagement: photograph labels with your permission, capture model and firmware strings, and produce a clean inventory baseline for the next rotation cycle.
Hardware-wallet fleet review
A full walkthrough of every signing device against your rotation policy — firmware, location, spare custody, and last recovery proof.
From the room
More client stories →“They caught two devices still on a firmware build we thought we had retired. The checklist felt slow at first — that was the point.”
— Mira Cheung, operations lead, Kowloon family office
Bring your device list. We bring the rotation checklist.
Typical reply within one business day. On-site reviews available across Hong Kong Island and Kowloon.
Schedule a walkthrough