Chain of Custody
The short answer · 19 words
In short
Chronological documentation of who has taken over, processed, transferred, examined or stored an object of evidence or data when.
Flow-alerta.cab (2026): Chain of Custody. https://flow-alerta.cab/en/glossar/chain-of-custody. Editorially reviewed on: 09 October 2026.
How much detail would you like?
Practical
Relevant for digital forensics, security incidents, sensitive training data, test protocols and all processes in which origin and unchanged delivery must be verifiable.
Example scenario: After a security incident, a log export is hashed, backed up, and each transfer to analytics personnel is documented with time and purpose.
For critical data use unique IDs, hash values, timestamps, roles and handover protocols; separate originals and working copies.
At a glance
- Core
- A Chain of Custody documents the life cycle of a piece of evidence or digital artifact from capture to archiving or return. It records transfers, controllers, dates and purposes and is intended to support integrity and traceability. It is particularly well known from forensics and regulated testing processes.
- Use
- Relevant for digital forensics, security incidents, sensitive training data, test protocols and all processes in which origin and unchanged delivery must be verifiable.
- Example
- Example scenario: After a security incident, a log export is hashed, backed up, and each transfer to analytics personnel is documented with time and purpose.
- Limits
- Copy files without hash or identification; do not document transfers; mix original and working copy; do not make subsequent changes to the protocol traceable.
In context
Questions about this term
Is Chain of Custody only for physical evidence?
No, even digital artifacts can be documented in this way.
Does it automatically prove the truth of the content?
No.
What does it primarily safeguard?
traceability of possessions, handling and transfers.
All details and background
A Chain of Custody documents the life cycle of a piece of evidence or digital artifact from capture to archiving or return. It records transfers, controllers, dates and purposes and is intended to support integrity and traceability. It is particularly well known from forensics and regulated testing processes.
ELI5 – Explained simply
Like a seamless handover protocol: every step must be traceable so that it remains clear who worked with the material when.
Why it matters in practice
Relevant for digital forensics, security incidents, sensitive training data, test protocols and all processes in which origin and unchanged delivery must be verifiable.
Example
Example scenario: After a security incident, a log export is hashed, backed up, and each transfer to analytics personnel is documented with time and purpose.
Pitfalls and limits
- Copy files without hash or identification; do not document transfers; mix original and working copy; do not make subsequent changes to the protocol traceable.
Origin & history
Chain of Custody is an established term from forensics and evidence management and has been transferred to digital evidence.
Use in mid-sized companies
- For critical data use unique IDs, hash values, timestamps, roles and handover protocols; separate originals and working copies.
Related terms
- Hash function
- Audit logging
- Provenience
- Incident response
Matching Flow-alerta service
AI assistants & automationAI assistants & automation: test a suitable process with clear rights and human test points.Matching tool / use case
View use casesUse Case: documented backup and sharing of digital logs or model artifacts during an investigation.Sources
- csrc.nist.govNIST CSRC, Chain of Custody
Quellenprüfung: 09.10.2026. Definition und dokumentierte Einordnung abgeglichen; Beispiele beschreiben mögliche Anwendungen.
Editorially reviewed on: