U.S. Patent-Approved Internal Locking System
The lock they can't see. The load they can't touch.
VaultX secures shipping containers and 53-ft van trailers from the inside. No visible lock means no visible target — and the load stays sealed even when the doors are attacked.
Outside the door
What a thief sees from the outside
An outside lock tells thieves which containers and trailers are carrying high-value cargo. Here's what they see.
Typical external lock
Visible target. Tells a thief this load is worth taking, and exactly what to cut.
VaultX
The lock is inside. Nothing to cut.
The Problem
Cargo theft is a $35 billion problem — and climbing
Reported physical cargo theft alone hit an estimated $725 million in the U.S. in 2025, up roughly 60% year over year.
Every external lock is a signal — it advertises that a load is worth taking and shows a thief exactly what to cut.
Prevention, not notification
Most cargo security tells you after the load is already gone. VaultX stops the break-in from ever happening.
GPS trackers, sensors, and smart seals detect a break-in after it happens. VaultX locks the doors from the inside and holds them shut, preventing the break-in in the first place.
Most U.S. cargo theft happens while trailers and containers sit idle — in yards, drop lots, and unsecured parking. VaultX guards cargo at rest as well as in motion.
How it compares
VaultX vs. the usual cargo security
Every method has a job. Here's what each one actually does.
| Compare | VaultX | Padlock | Bolt seal | Bar lock | GPS tracker |
|---|---|---|---|---|---|
| No visible target on the door | Yes | No | No | No clamps across the outside of the doors | No mounted outside, visible |
| Stops the break-in (vs. alerts after) | Yes | Partial deters, doesn't stop a determined cut | No tamper evidence, not prevention | Partial strong barrier, but can be cut or ground off | No alerts after the fact |
| Reusable trip after trip | Yes | Yes | No cut off and discarded each trip | Yes | Yes |
| Doors stay held if outside hardware is cut | Yes | No | No | Partial holds if its padlock is cut, not if the bar is | No doesn't hold doors at all |
| Works while parked in a yard or drop lot | Yes | Partial still a visible target while parked | Partial evidence only, no prevention | Partial still a visible target while parked | Partial tracks location, doesn't prevent entry |
How it works
Secure from within — in three steps
Mount at origin
The unit mounts to the door in minutes with minimal modification.
Lock from the inside
The system draws the doors shut from within and holds them — no external lock, no visible target.
Release on arrival
Authorized release at the destination, then the unit is recharged and reused on the next load.
We share the full technical picture in a live demo with qualified prospects.
Built for
Who VaultX protects
Fleets & carriers
Motor carriers and truckload fleets protect trailers with a lock that travels the whole route — moving or parked.
Container yards & drop lots
Secures ISO containers sitting in yards and drop lots, where most U.S. cargo theft happens.
Cold-chain & reefer loads
Engineered to operate in cold-chain and refrigerated conditions, so temperature-sensitive freight stays sealed. Read more →
Cross-border & intermodal
Built for ocean, rail, and over-the-road transport, including cross-border and intermodal moves.
Proof
Backed by testing, not talk
Test runs (Gen 1 trial)
U.S. patent, number to be listed once issued
By the inventors, Carlton and Frederick Martin
See it lock a real door in under five minutes
What happens next:
- Send the request. It takes under a minute.
- VaultX gets back to you to set a time.
- See it installed, locked, and released on real equipment.
- Talk through purchase or lease options.