Application Architecture Review
Distributed ledger custody review
Evidence-led review of signing flows, key ceremonies, and operational runbooks for a Seoul-listed fintech target.
Scope narrative
We stress-tested custody assumptions against production telemetry, incident history, and vendor SLAs. The work focused on reconciling marketing claims with how keys are actually rotated, who can approve transfers, and what breaks when an operator is unavailable.
What we examine
- Architecture walkthrough with engineering leads
- Control matrix mapped to ISO 27001 Annex A
- Synthetic transaction tracing in staging
- Third-party HSM configuration review
- Data residency and key geography mapping
- Runbook realism workshop with on-call staff
Transaction outcomes we highlight
- Board pack included a one-page residual risk heatmap
- Integration budget line items were reframed with clearer contingencies
- Legal and finance leads aligned on disclosure language before signing
Engagement FAQ
No. We complement financial and legal diligence with a narrow technical lens. Your auditors remain accountable for financial statements.
Field notes from prior sponsors
“The custody review named three handshake paths we had glossed over. The closing memo read like something our CIO could defend in committee without translating jargon.”
“Clear on scope, tight on evidence. We still wanted more time on vendor exit clauses, but the team flagged that as outside the technical perimeter early.”