Supply chain traceability is the ability to track a product or component as it moves through manufacturing, shipping, storage, retail, and sometimes repair or resale. It relies on records that show where an item came from, who handled it, and what changed along the way. In security terms, traceability turns the supply chain into a verifiable data trail.
This matters because attackers often target the gaps between physical goods and digital records. A cloned label, spoofed QR code, altered RFID tag, or stale backend entry can make a counterfeit or tampered item appear legitimate. Strong traceability helps defenders detect mismatches, prove provenance, support recalls, and protect compliance claims. It is most effective when paired with authenticated identifiers, tamper-resistant tags, versioned records, and controlled access for each partner that updates the chain.