Tamper-evident — not with special tools, not with patience. On arrival you check for yourself, in five seconds, whether your device was opened on the way.
Verified Boot and Titan M2 protect your phone’s software. The most dangerous moment, though, is physical transport — the point where someone (a border, a depot, an "evil maid") intercepts the parcel, opens it and tampers with the hardware before it reaches you. That is exactly what the mosaic seal is built against.
Over the device or parcel seam we seal a small vacuum bag holding hundreds of coloured lenses. Their exact 3D arrangement is pure chance with enormous entropy — practically impossible to recreate identically once opened. Any disturbance, any resealing shifts the pattern visibly.
A vacuum bag with the lens mosaic over the seam, then a high-resolution reference photo — right before shipping.
The reference image lands in your private /order/<token> portal. Only your token opens it.
On arrival, before you open the parcel: load the reference image into the app, where it is stored encrypted.
A fresh photo of the mosaic in the state it reached you in.
Blink Comparison flips rapidly between both images. If the pattern is identical, nothing blinks. If it was opened, the difference jumps right out at you.
Open source, free, from F-Droid. It uses the strongest pattern recognition in the world — your eye. Reference images are stored encrypted (XChaCha20-Poly1305, key via Argon2), so nobody can swap them.
Hundreds of lenses in random 3D positions — the combinatorics are so large that rebuilding is hopeless.
Cutting the vacuum open means the pattern collapses. There is no "opening it carefully".
No trust in us required — verification happens on your device, with your eyes, with open-source software.
The reference image sits in your token portal and encrypted in the app — not swappable.
On price: comparable vendors charge considerably more for sealed shipping — Purism around 230 € for their anti-interdiction bundle. At ZERO you pick the parts per device in the configurator (mosaic seal, device seal, FDE lock) — transparent instead of a black-box flat rate.
// This method is proven in the privacy community (proxysto.re, AnarSec among others). ZERO adds its own photo anchoring in the order portal.
// Anti-Interdiction ⟵ DE
A tamper-evident seal nobody can forge — not with special tools, not with patience. On arrival you check for yourself, in 5 seconds, whether your device was opened in transit.
Verified Boot and the Titan-M2 protect your phone's software. But the most dangerous moment is the physical shipping route — the point where someone (a border, a transit warehouse, an "evil maid") intercepts the package, opens it, and tampers with the hardware before it reaches you. That is exactly what the Mosaic Seal is built against.
Over the device or package seam we seal a small vacuum-sealed pouch with hundreds of coloured lentils (several colours, randomly mixed). The exact 3D arrangement of those lentils is pure randomness with enormous entropy — practically impossible to reproduce identically once opened. Any disturbance, any re-sealing, visibly shifts the pattern.
Open source, free, from F-Droid. It uses the strongest pattern recognition in the world — your eye. Reference images are stored encrypted (XChaCha20-Poly1305, key via Argon2), so no one can swap them.
→ Blink Comparison on F-DroidPrice context: comparable providers charge far more for sealed shipping — Purism around ~€230 for their anti-interdiction bundle. At ZERO you pick the building blocks per device in the configurator (mosaic seal, device seal, encryption) — transparent instead of a black-box flat fee.
// This method is field-proven by the privacy community (among others proxysto.re, AnarSec). ZERO implements it with its own photo anchoring in the order portal. Questions? Message us via your chosen channel.