# Untempered Security Seals

*Last updated: 2026-06-18*

> Security seals are affixed to containers or shipping units at the point of loading and must remain intact until unloading at the destination—only then can they be considered untempered in the context of supply chain security.

Security seals are affixed to containers or shipping units at the point of loading and must remain intact until unloading at the destination—only then can they be considered untempered in the context of supply chain security. They provide physical evidence that no unauthorized access to the cargo has taken place and that the contents remain as loaded. Customs authorities verify seal numbers against shipping documents at every inspection and release point; broken or missing seals trigger mandatory physical examination or formal investigation. Untempered security seals underpin major security programs such as the EU's Authorized Economic Operator (AEO) scheme and the US Customs-Trade Partnership Against Terrorism (C-TPAT). A key distinction exists between high-security seals—designed to physically resist forced entry—and indicative seals, which merely make tampering visible after the fact.

**Source:** [https://en.wikipedia.org/wiki/Security_seal](https://en.wikipedia.org/wiki/Security_seal)

## Quick Facts

| Property | Value |
|---|---|
| Term | Untempered Security Seals |
| Language | EN |
| Word count | 128 |
| Last updated | 2026-06-18 |
| Source | https://en.wikipedia.org/wiki/Security_seal |

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