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Data archival policies for old credentials involve migrating inactive or expired verifiable credentials (VCs) to cold storage (e.g., encrypted cloud archives or offline servers) after a defined retention period (e.g., 5-10 years). Metadata (e.g., issuance date, purpose) remains searchable, while sensitive data is pseudonymized or deleted per GDPR. Automated workflows trigger archival based on usage patterns, and audit logs ensure compliance. Retrievable archives support legal or historical requests while optimizing live system performance.
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