An Engineer’s Guide to Counterfeit Protection
Multi-layer authentication means counterfeiters must defeat several independent systems at once.

Counterfeiting is no longer an amateur’s game. Modern counterfeit operations forge packaging, replay codes, and even clone entire product identities. Beating them means layering independent protections so that defeating one tells you the others are there.

Layer 1: unique serial numbers

Serialisation gives every unit a unique identity inside a standards-based structure. Add a resolver on top and each scan verifies that the identity is genuine — and one number used a thousand times becomes instantly visible as a red flag.

Layer 2: tamper evidence

One-time-use codes and anti-tamper packaging make resale of genuine empties impossible. If the code has already been activated, the product is exposed.

Layer 3: covert forensic marks

Hidden, machine-read features — microtext, UV, taggant inks — give investigators definitive answers that overt features alone can’t provide.

Layer 4: behaviour analytics

Patterns are the tell. Cloned codes scanned seconds apart in different continents, activation spikes, and odd scan geographies trigger automatic alerts — turning consumer scans into a counterfeit-protection early warning system.

The strongest defences aren’t secrets; they’re systems that make fakes expensive, visible, and embarrassing to ship.