Tamper-Evident Labels

Tamper-evident labels are how TrusCodes anchors digital identity to the physical product—so authenticity is not only “claimed,” it is enforceable in the real world.

Request a packaging security review Download label controls brief Request pilot proposal

Why tamper evidence matters

Peel-and-transfer is the gap

Without tamper evidence, even a cryptographically genuine code can be moved from:

a genuine product → to a counterfeit product.

This is one of the most common real-world attack patterns: peel-and-transfer.

What “tamper-evident” means in TrusCodes

Attempts leave evidence or trigger invalidation

Tamper-evident means attempts to access, remove, or reuse the label:

leave visible evidence, and/or
trigger backend invalidation signals based on policy.

Tamper evidence works best when combined with lifecycle enforcement.

How tamper evidence works with TrusCodes verification

Three layers, one outcome

Physical tamper evidence

Discourages reuse and transfer.

Lifecycle enforcement

Prevents replay even if a code is copied.

Audit logs

Preserve evidence of attempts and outcomes.

Together, they make misuse costly and detectable.

What this protects against

Real-world attack patterns

Peel-and-transfer attacks
Label reuse across multiple items
Screenshot and copy-based replay attempts (when combined with lifecycle control)
Channel-level substitution and repacking scenarios (risk-dependent)

Governance outputs

Typical artifacts for review

verification outcomes linked to label identity
invalidation / consumed states
abnormal repeat attempts associated with the same identity
exception flags for investigation

Frequently asked

FAQs

What is a tamper-evident authentication system?: It is a system where physical labels show evidence of tampering and the backend verification system responds using lifecycle rules and evidence logging.
Do tamper-evident labels alone stop counterfeiting?: They reduce physical reuse, but enforceable trust requires the full stack: cryptography + tamper evidence + lifecycle enforcement + audit logging.

Decision block

Want a packaging security review for your SKUs?

Request a security review Request pilot proposal