Offline Wallet Health Board
A paper-first system for checking custody hygiene: device lanes, evidence notes, and recovery dry-runs — taught without market commentary.
Learning outcomes
- Layout a complete Offline Wallet Health Board with clear status lanes
- Write evidence notes that omit secrets yet remain auditable
- Run a recovery dry-run with dummy material and timebox the steps
- Set a weekly re-check cadence that survives busy months
This course does not teach trading strategy and is Not Financial Advice.
Modules
- 01
Board anatomy
Lanes, markers, and what never belongs on paper.
- 02
Device readiness
Boot checks, cable trust, and environment notes.
- 03
Firmware evidence
Recording versions and update posture without rushing installs.
- 04
Backup geography
Locations, access rules, and dual-control sketches.
- 05
Access & people
Who can initiate what — and how you verify that quietly.
- 06
Signal logging
Writing notes a future teammate can parse under stress.
- 07
Recovery dry-run
Scripted rehearsal using only course dummy materials.
- 08
Incident quiet hours
What to pause, whom to call, what not to improvise.
- 09
Weekly cadence
A short ritual that keeps the board honest.
- 10
Facilitation basics
Running a board review for a small team without turning it into theater.
- 11
Capstone critique
Peer review of a completed board photograph set (secrets redacted).
Instructor
Yuna Cho designs operational drills for small custody teams. She previously led documentation practice for a Busan-based tooling studio and now teaches Cloudgrid Lab cohorts with an emphasis on legible notes over clever shortcuts.
Informational pricing
₩420,000
Signal Studio tier includes the full course and clinic hours. See Pricing for Board Lite and Lab Cohort. No checkout on this website.
Request enrollment detailsFAQ
Do I need a hardware wallet to join?
Helpful, but not required on day one. Early modules use diagrams and dummy scenarios. Later dry-runs assume you can access a device you control — or a loaner in a Lab Cohort setting.
Will you tell me what to buy or hold?
No. Cloudgrid Lab does not provide investment, trading, or product-picking advice. See Not Financial Advice.
What is a real limitation of this course?
The board cannot detect compromised supply-chain hardware by itself. We teach observational hygiene and documentation; we do not claim laboratory-grade device attestation. If you need formal audits, hire specialists — this class will not replace them.
Is live attendance required?
Board Lite is self-paced. Signal Studio includes live clinics; recordings are provided when a session is missed, though critique slots are not automatically extended.
Course reviews
Module 07’s dry-run script exposed a gap in our passphrase handoff notes. We fixed the template before touching anything live.
I wanted more Korea-specific safe-deposit anecdotes in Module 04. Still, the lane structure is what I kept.