NeuralTechs

Session

Air-Gapped Wallet Audit

A structured three-hour review of firmware provenance, passphrase habits, address verification, and offline signing discipline.

  • 3 hours
  • In-person private session
  • From ₩480,000 per session
  • Guro studio, Seoul

Who this is for

Experienced self-custody users who already hold keys offline and want a second pair of eyes on how those wallets are maintained—not beginners hunting for a first hardware device.

What you walk away with

  • A written audit memo covering firmware sources, update cadence, and passphrase handling assumptions
  • A signing-log skeleton tailored to the devices you actually use
  • A short list of habits to change before the next large transfer
  • Clarity on what we did not review (and why)

Scope included

We examine device provenance paperwork you bring, how you verify receive addresses, how PSBTs or QR payloads move between air-gapped and online machines, and whether your labeling system would survive a stressed recovery. We also walk through Faraday storage and travel packing for the specific models you own.

Scope excluded

We do not generate, store, or view seed phrases. We do not perform remote audits over video. We do not reconfigure exchange accounts or install software on your machines. Tax, legal, or investment advice is outside this session.

How the session runs

  1. Intake (15 min) — devices on the table, goals stated, red lines confirmed.
  2. Device walkthrough (75 min) — firmware, passphrase policy, address checks, offline signing path.
  3. Log map (60 min) — build or repair your signing-log format with sample entries (no real private keys).
  4. Close (30 min) — memo outline, follow-up questions, optional booking for organization work.

Preparation

Bring hardware wallets in their usual travel state, printed or handwritten firmware notes if you keep them, and any existing signing logs. Leave spare seed backups sealed and at home unless we explicitly agree otherwise in writing before the visit.

Duration & location

Three hours at 300 Digital-ro, Guro-gu, Seoul 08379, weekdays by appointment. Evening slots exist when rain-day quiet rooms are available.

Pricing basis

Sessions start at ₩480,000. Multi-device setups or bilingual memos may add time billed at the published half-day rate on our rates page.

Next step

Request an audit session and name the devices you intend to bring. We confirm only after both sides agree the room rules.

Request this session