Thieves Stole Two 'Nvidia' Trailers. Inside Was 40,000 Pounds of Sand

Somewhere in Newark, California, on Thursday morning, thieves broke two hand locks, hooked their own cabs onto two trailers emblazoned with the logos of PlusAI and Nvidia, and drove off with what they had every reason to believe was a haul of valuable AI hardware.

They got sand.

Each trailer contained roughly 20,000 pounds of it — about 40,000 pounds in total — because PlusAI, a self-driving truck developer, uses simulated loads during research and development testing. When the thieves discovered this, they abandoned the trailers, according to an account of the incident first reported by WIRED and confirmed through a police statement.

The botched heist began with a text message. On Thursday morning, a top executive at PlusAI received an unexpected congratulatory note from an acquaintance: "I have been proud of you for your adventure and success at Plus. Just saw two of your trucks near my work place! :)"

The executive had reason to be confused. PlusAI's trucks were not supposed to be anywhere near that person's office in Newark. As of the last information the company had, the trailers were docked outside its own warehouse, half a mile away.

Police soon arrived on the scene to help recover the two trailers, which carried branding for both PlusAI and Nvidia. The two companies are working together on AI software and autonomous truck technology, and Nvidia is currently the most valuable company in the world — a fact that makes any trailer bearing its name a tempting target for cargo thieves hunting high-value computer equipment.

It was PlusAI employees who gave police the key clue about why the thieves may have abandoned the trailers after breaking them open. Each one was full of sand.

"PlusAI uses simulated loads in its trailers to assist with research and development testing," says Lauren Kwan, a company spokesperson. The trailers were recovered with "40,000 pounds of sand intact."

What was taken, and what wasn't

The theft had clear limits. PlusAI's technology-enabled truck cabs — the units where a driver typically sits and controls the vehicle — were parked inside the company's warehouse and were not taken, Kwan says. Only the trailers were outside, secured with hand locks, which the thieves broke.

That detail matters for understanding the crime. The cabs, which contain the autonomous driving technology PlusAI is developing, sat behind the warehouse walls. The trailers, carrying nothing but ballast for testing purposes, sat exposed in the dock area. The thieves hooked up their own cabs and drove away with what looked, from the outside, like a shipment connected to two AI companies.

The Fremont Police Department is investigating the case, and no arrests have been made, says Amy Gee, a police spokesperson. Nvidia did not immediately respond to a request for comment.

By Thursday afternoon, the story had reached its resolution: the sand-filled trailers were back with PlusAI, according to the Fremont Police Department.

A pattern of theft aimed at the AI supply chain

The incident might read as comedy — an elaborate heist undone by 40,000 pounds of construction material — but it fits a serious and growing pattern. Cargo thieves across the United States are increasingly targeting high-value computer equipment, especially chips and other electronics destined for data centers, the physical backbone of the AI boom.

The stakes are substantial. In August, WIRED revealed two separate California incidents in which thieves deliberately struck the vehicles of security escorts that follow high-value tech loads to ensure they reach their destinations. After disabling the escorts, the thieves drove the trucks to another location. As of August, millions of dollars of data center equipment aboard those trucks had not been recovered.

The targets extend beyond data center gear. This year, thieves have also stolen Tesla batteries and bitcoin mining machines, according to the reporting. Authorities have arrested suspects in some of these cases, but many of the crimes remain unsolved.

Industry data backs up the trend. Some of the most common targets of cargo theft across the US in recent months include metals and enterprise-grade computer and networking equipment, according to Verisk CargoNet, an analytics and risk assessment firm that tracks cargo crime.

Why the branding likely mattered

The thieves' target selection, in this case, appears straightforward. The trailers carried the logos of PlusAI and Nvidia. Nvidia's position as the most valuable company on the planet reflects its dominance in the GPUs that power AI training and inference, and its hardware commands enormous resale value in a market where demand consistently outruns supply. A trailer marked with Nvidia's name plausibly signals exactly the kind of payload that has made cargo theft of computing equipment a persistent problem this year.

In this instance, the signal was wrong. The trailers held sand because PlusAI needs ballast, not cargo, to run its autonomous trucking tests — a simulated load stands in for real freight while the company develops and validates its driving software. The result was a heist where the thieves walked away with nothing, the company lost nothing but two broken hand locks, and the cargo returned to its owner the same day.

Not every target of this kind of theft is so lucky. The data center equipment stolen in the August incidents in California remained missing, representing millions of dollars in losses. As long as chips, networking gear, and other AI infrastructure remain scarce and expensive, the economic incentive that drove someone to hitch their cab to a pair of Nvidia-branded trailers in Newark will keep applying to trucks carrying the real thing — and the next crew may check what's inside before abandoning it.