Full custody review
A structured, in-person review of your hardware wallets, recent movements, signer setup, and offline custody notes.
CognitiSec
Custody kept offline, reviewed in person
Hardware wallet activity logging and private custody review for investors who will not trust an online dashboard with their holdings.
Flagship engagement
Full custody review at the device
We sit with you and your hardware wallets—never through a shared cloud console—to reconstruct recent movements, verify signer setup, and document what your cold storage actually holds.
- Device-by-device activity log for each wallet you bring
- Seed-phrase handling protocol observed, never recorded digitally
- Written custody notes you keep offline after the session
Related work
What private investors usually request
Activity logging session
Focused reconstruction of recent hardware wallet movements when you only need the ledger, not a full custody packet.
Device inventory & handover notes
Catalog of devices, labels, and offline handover instructions when holdings move between household members.
From clients
More client stories“They spent two hours with three Ledger devices and a battered notebook. The activity log matched what I thought I had moved—except one forgotten test send from last winter. That quiet correction mattered more than any portfolio chart.”
From the journal
Notes from cold-storage practice
What to bring to a hardware wallet custody review
A practical packing list for private investors arriving at an offline review—devices, paper, and what to leave at home.
Reading on-device history without a dashboard
How private holders reconstruct movements from the screen on the wallet itself—and when that record is incomplete.
Bring the wallets. Leave the dashboards closed.
Tell us which devices you hold and roughly how long since your last self-audit. We reply within two business days with a proposed session window in Seoul.
Write to CognitiSec