Insights on Crypto Payments, Infrastructure, and Operations

Custody Incident

Pronunciation: KUS-tuh-dee IHN-suh-dunt

Definition

A custody incident is an event that threatens or causes unauthorized asset movement, loss of access, record errors, or safeguarding failure.

Overview

Context and purpose

A custody incident affects the systems, people, keys, records, or legal arrangements used to hold assets. Examples include private-key compromise, unauthorized withdrawal, lost signing access, reconciliation breaks, incorrect address use, insider misuse, or third-party service failure. The initial signal may be ambiguous, so teams must rapidly determine affected assets, wallets, customers, chains, counterparties, and remaining authority. Moving assets defensively can reduce loss but may also destroy evidence or create operational and legal complications. Response plans should define emergency signers, transaction approval, evidence preservation, communications, regulatory assessment, reconciliation, and recovery. Post-incident work includes root-cause remediation, key rotation, control validation, customer treatment, and monitoring for delayed attacker activity. Effective handling of Custody Incident connects detection, triage, preservation, containment, eradication, recovery, communication, regulatory assessment, and lessons learned through one auditable timeline. Custody Incident should distinguish an alert, suspected event, confirmed incident, material impact, and restored service because each state requires different decisions and notifications.

How it works

A custody incident is an event that threatens control, availability or integrity of protected assets or their signing infrastructure. Suspected credential theft, lost backups and unauthorized transfers require different containment paths.

Practical checks and failure points

Preserve logs and chain evidence, isolate compromised systems, communicate carefully and rehearse recovery procedures in advance.

Cold Custody · Asset Custody

Example

A signing device is missing but no unauthorized transfer is yet visible. The organization freezes affected routes, investigates access and prepares key rotation or migration before assuming funds are safe.

Comparison

An incident is not always a confirmed loss, but waiting for confirmed theft can increase exposure.

Key Takeaway

Preserve logs and chain evidence, isolate compromised systems, communicate carefully and rehearse recovery procedures in advance.

Sources

  1. NIST Documentation: Cyberframework — NIST (2026-07-30)