GS1 Global Standards - Supply Chain Traceability and Data Security DataSecurity-Integrity-AccessControl: GS1 Data Security and Integrity in Exchange, Access Control and Tamper Evidence

GS1 DATA SECURITY + INTEGRITY in supply chain data exchange. KEY PRINCIPLES: (1) DATA INTEGRITY - master data + EPCIS events + GDSN exchanges must be ACCURATE + COMPLETE + TIMELY + reflect true state of supply chain; validation rules + check digits + cross-references + audit trails; (2) DATA SECURITY in exchange - TLS 1.2+ + certificate-pinning + mTLS for B2B + EPCIS APIs + GDSN data exchanges; OAuth 2.0 + JWT + API keys for authentication; encryption at rest + in transit; (3) ACCESS CONTROL to traceability data - role-based access (publisher + subscriber + viewer + admin); confidentiality preservation (sensitive supply chain + competitive information); GDPR + privacy compliance for traceability data including personal data (operator name + location + role); (4) MASTER DATA CHANGE CONTROL - change management procedures + version control + approval workflows + audit logs + data lineage; data correction processes; (5) VERIFICATION OF DATA QUALITY - automated validation against GS1 specifications + business rules + sectoral requirements; data quality scoring + alerting; manual review of high-impact + critical data; (6) LOGISTIC LABEL TAMPER EVIDENCE - tamper-evident packaging + serialized + holographic + RFID + smart-label technologies for high-value + counterfeit-prone products (pharma + tobacco + luxury); coordination with EU FMD + DSCSA tamper-evident requirements; (7) BARCODE + SYMBOL QUALITY - ISO/IEC 15416 (1D) + ISO/IEC 15415 (2D) + GS1 Symbol Grade A-F scoring; verification at production + retailer-acceptance + post-acceptance; (8) CYBERSECURITY of supply chain data systems - NIS2 + DORA + sectoral cyber + EPCIS repository security + GDSN data pool security + Digital Link resolver security; SIEM + SOC + incident response + recovery; (9) PRIVACY - personal data in traceability (where individuals identified by GSRN or other GS1 codes) + GDPR + DPP regulatory compliance; (10) BLOCKCHAIN + DLT for integrity - tamper-evident provenance + GS1 codes anchored on-chain (IBM Food Trust + Hyperledger + Ethereum + others); cryptographic + immutable provenance.