Overview
ISO/TS 18759:2022 - Document management - Trustworthy storage system (TSS) - Functional and technical requirements - defines technology‑neutral requirements for systems that store and manage electronically stored information (ESI) in a protected, auditable and preservation‑oriented way. The specification targets the full ESI lifecycle, emphasizing immutability, authenticity and trustworthiness, protection against tampering and ransomware, enforcement of organizational retention and deletion policies, and safeguarding unstructured or unmanaged data.
This technical specification is intended as guidance for designing, selecting and implementing a Trustworthy Storage System (TSS) that supports chain-of-custody, legal/regulatory compliance and long‑term evidentiary value of digital information.
Key Topics
ISO/TS 18759 covers functional and technical requirements across these core areas:
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TSS concepts & lifecycle management
- Lifecycle handling of immutable, changeable and retained ESI.
- Preservation, retention periods and deletion controls.
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Security, protection & hold restrictions
- Requirements for preventing tampering, malicious activity and ransomware impact.
- Mechanisms for holds, legal retainment and controlled deletion.
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Integrity, auditing & monitoring
- Audit trails, integrity checks and auditable controls to demonstrate trustworthiness.
- Monitoring, notifications and alerting for corruption or policy violations.
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Encryption & secure erase
- Guidance on ESI encryption, secure deletion/erasure and protection of stored data.
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Redundancy, replication & migration
- Requirements to support resilience, media migration, obsolescence management and device integrity.
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Technical methods & mitigations
- Detection/validation of corruption, error correction, permissioning and ransomware mitigation approaches.
These topics are presented in a technology‑agnostic manner; the standard specifies what a TSS must achieve, not which storage media or vendor solutions to use.
Applications
Who should use ISO/TS 18759 and why:
- Records managers & archivists - to ensure long‑term preservation and legal admissibility of records.
- IT architects & storage vendors - to design and validate storage solutions that meet organizational retention, immutability and security needs.
- Compliance, legal and audit teams - to define and verify controls that support regulatory obligations and eDiscovery/hold requirements.
- Organizations without formal records programs - to protect unstructured and unmanaged ESI from tampering or ransomware.
Practical benefits include improved chain of custody, standardized retention enforcement, reduced litigation risk and stronger ransomware resilience.
Related Standards
Normative and complementary references cited in ISO/TS 18759 include:
- ISO 12651‑1 (Electronic document management - Vocabulary)
- ISO 13008 (Digital records conversion and migration process)
- ISO 14641 (Electronic document management - Design and operation)
Use ISO/TS 18759 alongside these standards when implementing comprehensive document and records storage strategies.