White-labeled and vulnerable: The urgent case for FMCSA to overhaul ELD certification

Joe Ohr

Article Summary

As cybersecurity researchers demonstrate the ability to manipulate commercial truck systems, the industry must move past easily exploitable, self-certified ELDs to protect hours-of-service regulations and keep fatigued drivers off the road.

• Trucking vulnerabilities exposed at DEF CON: The NMFTA showcased commercial vehicle vulnerabilities at the hacker conference, revealing how easily truck systems—including braking controllers—can be manipulated.
• The flaw in self-certification: Relying on manufacturers to self-certify ELDs creates a system ripe for manipulation, turning what should be a safety device into a tool to bypass Hours-of-Service (HOS) regulations.
• The white-label loophole: Roughly three-quarters of registered ELDs share underlying hardware and software, meaning revoking a single noncompliant model does not fix the root vulnerability on America’s highways.
• A call to action for the FMCSA: The FMCSA must overhaul its registry by requiring independent third-party testing, Software Bills of Materials (SBOMs), and the ability to revoke entire families of noncompliant white-labeled ELDs.

DEF CON, one of the world’s largest hacker conferences, is a weeklong event that brings cybersecurity professionals, researchers, students and hobbyists together each August in Las Vegas to share their findings and get their hands on technology to see what they can do with it.

To many in the cybersecurity and information technology industries, this is the premier event of their professional year. For me, it was a scary event where I saw what was actually possible.

This year, the National Motor Freight Transportation Association (NMFTA) brought the trucking industry to DEF CON. NMFTA extends its sincere thanks to Hirschbach for working with us to make this experience a reality, and to the Maritime Hacking Village for providing the space, support and partnership needed to make the event such a success.

In the village, attendees could examine and attempt to hack into the connected devices used by the entire supply chain, from shipboard maritime systems to freight terminal operations, railroads and now trucking.

DEF CON attendees had the opportunity to connect to the vehicle and test their ability to identify and interact with truck systems. Most of us are around trucks quite a bit; it was fun to watch people interact with and climb into the cab. We even had to ask people to please not pull the horn. The truck attracted participants of all skill levels, from those connecting to a truck for the first time to experienced hackers who arrived with specific targets in mind.

The hands-on experience provided a unique opportunity for attendees to explore the cybersecurity of commercial vehicles in a real-world environment.

NMFTA cybersecurity researcher Ben Gardiner presented his findings into a security patch quietly included into a software update pushed out as part of a safety recall for braking controllers found in tractors and trailers. The flaw allowed for a remote attacker to disable the anti-lock braking systems on tractors, putting drivers and their cargoes in danger.

NMFTA acquired Bendix EC80 units and examined pre- and post-patch firmware versions on these devices. We discovered that the security update was not associated with a published Common Vulnerability and Exposure (CVE) entry, which obscured facts from carriers which could lead to flawed risk assessments.

Though the vulnerability was patched, Gardiner emphasized the nature of modern truck telematic devices requires transparency from manufacturers about security vulnerabilities and what the manufacturers are doing about them. NMFTA believes a lack of a CVE slowed down the adoption and criticality of the patch.

Call to action: End ELD self-certification

The purpose of an ELD is not to create an electronic log. Its purpose is to create a trustworthy electronic record. Hours-of-service (HOS) rules exist for one fundamental reason: fatigued drivers operating 80,000-pound commercial vehicles are a threat to everyone on the road.

For decades, enforcement depended largely on paper logbooks. That system had an obvious weakness; the person being regulated was also responsible for documenting compliance. Drivers determined what went into the logbook, and dishonest operators could maintain records that showed compliance regardless of what occurred.

ELDs were supposed to change that. The ELD mandate replaced trust in handwritten records with trust in technology. ELDs automatically capture vehicle and driver activity, reduce the administrative burden on drivers and provide law enforcement with a standardized mechanism for verifying HOS.

But that system only works if the ELD itself can be trusted. Today, that trust is not adequately protected. ELD manufacturers self-certify their devices when registering them with the Federal Motor Carrier Safety Administration (FMCSA). The government and the trucking industry are therefore relying heavily on manufacturers to attest that their own products comply with federal requirements and accurately record driver activity.

For a technology that serves as a primary enforcement mechanism for federal HOS regulations, self-certification is no longer sufficient. As we know, an ELD is a computer. It contains hardware, software, communications capabilities, databases and applications. Like any computer system, it can contain vulnerabilities or functionality that allows information to be manipulated. If an ELD can be intentionally altered to make a driver appear compliant when that driver has exceeded legal HOS, the ELD is no longer a safety device; it becomes a tool for defeating the regulation it was designed to enforce.

The white-label problem makes this far worse

NMFTA’s own research identified an even more serious systemic weakness: white-labeled ELDs. Of approximately 1,050 ELDs registered with FMCSA, NMFTA researchers determined that roughly three-quarters appear to share underlying hardware and software with other registered devices.

Essentially identical products can be rebadged and registered under dozens — or even hundreds — of different names. That means revoking a single model may accomplish very little.

FMCSA currently revokes ELD registrations largely on a model-by-model basis. But if the underlying hardware, software, application or backend infrastructure is shared across numerous registered products, removing one name from the registry does not necessarily remove the underlying problem from America’s highways.

It can simply change names

NMFTA’s research indicates that approximately 720 currently registered ELD models may share the same underlying vulnerability. If an ELD is revoked, an operator may be able to move to another registered product using substantially the same hardware and software. In some cases, the same physical hardware may be used with a different Android application. In others, multiple products may even rely on shared backend infrastructure.

So, let’s pause and take a moment to think about what that means. A regulator can identify a problem, revoke an ELD, announce that action to the industry — and the same underlying technology may continue operating legally under another name.

That is not an effective certification system. It is a loophole. And sophisticated, bad actors know how to exploit loopholes.

This is not merely a paperwork or technology issue. An ELD capable of falsifying HOS records can allow a driver to operate beyond federally permitted limits while presenting apparently legitimate records during an inspection. The result is potentially a fatigued driver operating a commercial motor vehicle next to families traveling on America’s highways. That makes ELD integrity a public safety issue.

Certification must follow the technology, not the label on the box or on the application

FMCSA should move away from a system that primarily certifies and revokes individual product names and toward one that evaluates the underlying technology and organizations behind those products. At a minimum, FMCSA should:

• Require a Software Bill of Materials (SBOM) identifying the software components used by every registered ELD.
• Require independent, third-party testing and attestation of ELD accuracy, security and resistance to tampering.
• Identify common hardware, software, applications and backend infrastructure across white-labeled products. That is a question on the form.
• When a vulnerability or intentional manipulation capability is identified, investigate and, when warranted, revoke the entire affected family of ELDs — not simply one model name.
• Proactively analyze ERODs data for anomalies associated with specific devices and device families.
• Require meaningful alerts and records when an ELD is disconnected, disabled or otherwise prevented from accurately recording vehicle activity.
• Train roadside inspectors to recognize indicators of ELD manipulation and known problematic ELD families.
• Strengthen accountability and oversight for ELD providers whose critical operations are conducted outside North America.
• Validate the integrity of the FMCSA ELD registry itself, including manufacturer identities, physical addresses, telephone numbers, email addresses and other registration information.

Most importantly, these requirements need deadlines and consequences. Existing ELD providers should be given a defined period to meet strengthened certification requirements. Providers that cannot demonstrate compliance, security, data integrity and resistance to manipulation should lose their certification.

The trucking industry should not have to guess whether a federally registered ELD actually does what it claims to do. Law enforcement should not have to wonder whether the hours displayed on a roadside inspection are real. And the motoring public should not bear the risk created by technology designed to make an exhausted driver appear compliant.

The purpose of an ELD is not to create an electronic log. Its purpose is to create a trustworthy electronic record. If that record cannot be trusted, the entire regulatory system built around it begins to fail.

Self-certification has reached its limit. FMCSA should independently verify these devices, identify the technology behind white-labeled products and remove entire families of noncompliant ELDs from North America’s highways.

Three common methods of ELD manipulation

Yevgeniy Melnik

1. Multiple logbook fraud (double-logging)

Some drivers maintain two sets of logs — one for the ELD, one for reality. Logs are edited or selectively erased to make it appear the driver was resting when they were actually driving. Brokers booking these drivers may unknowingly assign loads to operators running well outside legal HOS limits.

Impact on brokers and law enforcement:

• Severe legal exposure if a load is assigned to a fraudulent carrier and an accident follows.
• Plaintiff attorneys cite the falsified logs as evidence of negligent selection.
• FMCSA violations can revoke carrier authority.

How to prevent it:

• Vet carriers against ELD compliance history before booking.
• Monitor logs for excessive manual edits — a high edit count is a tell.
• Use AI-based fraud detection that flags double-logging patterns automatically.

2. Night-time deliveries while logs show sleep hours

Drivers falsify sleep periods on the ELD while continuing to drive overnight. Carriers under pressure to complete urgent loads may push drivers to do this. Brokers booking overnight deliveries may not realize the driver is in violation until something goes wrong.

Impact:

• Fatigue-related crashes are dramatically more likely when the driver hasn’t actually slept.
• If a manipulated log is discovered after a crash, liability exposure increases sharply.

How to prevent it:

• Cross-reference log entries against geolocation pings and fuel-transaction data.
• Train enforcement personnel to spot the inconsistencies between claimed sleep periods and the truck’s actual movement.

3. Disconnecting the ELD device

Some operators physically disconnect or tamper with the ELD to avoid recording driving hours entirely. This lets carriers consolidate multiple loads or hide excess driving time — boosting profit per truck while violating compliance.

Impact:

• Shipment tracking becomes unreliable; ETAs are inaccurate.
• Audits become difficult because the operational record has gaps.
• Brokers who unknowingly book these carriers face the same negligent-selection exposure.

How to prevent it:

• Require tamper-resistant ELDs that alert on unauthorized disconnects.
• Use independent GPS tracking that doesn’t rely on the ELD.
• Cross-reference log timestamps against pickup and drop-off records.

Some carriers also consolidate multiple shipments without informing the broker, which compounds these issues. See our guide on unauthorized load consolidation for more on how that works and how to detect it.

How brokers and law enforcement should respond

ELD manipulation isn’t a niche problem. It’s the entry point to fatigue crashes, freight fraud, and significant broker liability. Effective response combines policy, technology, and ongoing audits.

• Use ELD verification tools. Validate device tamper-resistance and check for known compromise patterns.
• Audit carrier logs regularly. Suspicious edit counts and mismatched trip data are detectable signals.
• Cross-check telematics, fuel, and toll data. Independent data sources catch most manipulation; the gaps light up when you correlate them.
• Implement AI-based fraud detection. Software that flags manipulated ELD records and alerts compliance teams scales the audit function.

If you want help building or auditing a carrier compliance program — or you’re a mid-size brokerage that doesn’t have a Director of Risk on staff — that is what fractional risk consulting is for. Three tiers, retainer-based, no exclusivity.

Frequently asked questions

What is ELD manipulation?

ELD (Electronic Logging Device) manipulation is the falsification of a driver’s hours-of-service records — typically to hide driving time that exceeds federal limits. Common methods include running parallel log sets, marking driving time as sleeper-berth, and physically disconnecting the device while driving.

How do brokers detect falsified ELD logs?

Cross-reference log entries against independent data sources. Geolocation pings, fuel-card transactions, toll records, and pickup or delivery timestamps each capture the truck’s actual location at known times. When ELD logs claim a driver was resting at 2 AM but a fuel transaction places them on the road, you have proof of falsification.

What are the FMCSA penalties for ELD tampering?

Civil penalties for ELD violations can exceed $10,000 per occurrence under 49 CFR 395, plus suspension or revocation of operating authority. Criminal charges are possible when falsification is willful and contributes to an accident. Carriers caught tampering generally face out-of-service orders during roadside inspections.

Can a broker be held liable for a carrier’s ELD violations?

Yes — particularly under negligent-selection and vicarious-liability theories. If a broker books a carrier with a known pattern of ELD violations or HOS infractions, and a driver from that carrier crashes, plaintiff attorneys will argue the broker was on notice. Documenting carrier vetting and rejecting carriers with poor compliance histories is the strongest defense.

How carriers can identify log falsification

Jenny Glasscock

Hours-of-service violations are fairly easy to detect on a driver’s log. After all, ELDs are designed to keep track of drivers’ hours and will flag instances when they exceeded their allotted driving time.

However, just because the ELD system did not detect an HOS violation doesn’t mean it’s not there, concealed by log falsification.

The issue of log falsification isn’t new. It was prevalent both in the days of paper logs and still today in the ELD era. What has changed is the way drivers falsify logs: unplugging an ELD, working without being logged in or making deliveries while on personal conveyance, for example.

Log falsification isn’t something carriers should take lightly. According to FMCSA data from 2019 to 2023, “a false report of driver’s record of duty status” accounted for 4.9% of all roadside inspection violations, was the fourth most common driver violation and one of the top out-of-service violations.

While law enforcement can only see a driver’s logs from the last eight days, carriers and drivers aren’t out of the woods once this time passes. Companies are required to retain drivers’ logs for six months, which exposes them to the risk of fines or a reduction in their safety rating.

“If there comes a time when you have a crash and attorneys or law enforcement start digging into your records and find falsifications, it’s all going to come to the surface. That’s probably the worst thing that could happen when it comes to hours of service,” said Brian Runnels, vice president of safety at Reliance Partners, a Tennessee-based trucking insurance agency that aims to help motor carriers manage safety risk.

This is why it’s vital that safety departments understand how drivers falsify logs, look out for it daily and address it internally to prevent it from happening in the future. Runnels identified three valuable reports safety personnel should watch for signs of log falsification.

Reports to help catch log falsification

1. Odometer report

An ELD’s odometer report provides a truck’s mileage from the beginning and end of each day.

A jump in the odometer reading from day to day means the ELD did not record those miles, which is a red flag that can be a sign the device came unplugged. Drivers can unplug the device in order to avoid being tracked by the ELD and hide the fact they drove beyond their hours-of-service limits.

“Those miles must be assigned to whoever was in the truck,” Runnels advised. “It could have been in the shop and moved around by the mechanic. But if there’s no good reason, it must be assigned back to the driver.”

2. Unidentified driving report

When a driver logs out of his or her ELD and drives, but the device is still plugged in, the miles driven are still recorded. However, in most cases, the hours are not automatically added to the driver’s log.

Once the driver logs back into the system, most ELDs will ask drivers to claim any time driven as on-duty driving time. It will be considered unidentified, or unassigned, driving time if it is not claimed by the driver.

While sometimes not claiming unidentified driving time is a mistake, it’s also something drivers do when trying to conceal HOS violations; if drivers were to accept that time as on-duty drive time, it would put them over their legal work hours.

Motor carriers must retain unidentified driving records for six months, and as per the Federal Motor Carrier Safety Regulations (FMCSRs), they must “annotate the record, explaining why the time is unassigned; or, assign the record to the appropriate driver to correctly reflect the driver’s hours of service.”

Safety personnel will need to determine whether unassigned driving time should be assigned as on-duty driving time, on-duty yard move or off-duty personal conveyance. The driver then must verify it and accept it on his or her log.

3. Personal conveyance report

Personal conveyance is driving done off duty for a non-working reason and does not count toward a driver’s hours of service limits. Drivers falsify logs by misusing personal conveyance, often switching from on-duty driving to personal conveyance once their available hours are up. This can be to finish delivering their current loads, advance their locations for their next pickups or even to perform other work-related moves such as driving to the repair shop.

Motor carriers should pull their fleets’ personal conveyance reports and review all annotations from drivers to ensure they are adhering to FMCSA guidelines and company policy.

Current FMCSA parameters for personal conveyance do not include specific time or distance limits, only descriptions for when it can be used, which some consider too vague. Drivers who unintentionally use personal conveyance improperly can still be dinged for false logs.

“That may have a drastic effect on a company’s safety scores because those rules are weighted so heavily. A lot of the time, drivers are also put out of service, so that is going to add points to their hours-of-service score. When you start getting a few of these falsifications, that will really wreak havoc,” Runnels said.

Carriers can enforce stricter personal conveyance guidance or turn off the function altogether, but this may not solve the root of the problem entirely: Runnels said this tends to cause an uptick in HOS violations. This could be because drivers are still met with the same scenarios that caused them to use personal conveyance in the first place.

Preventing log falsification

Whether it happens on paper or an ELD, the core reason for log falsification still remains the same: “It’s all about getting somewhere with not enough time to get there,” Runnels said.

This is an issue the industry as a whole has always grappled with but will not hold up as an excuse in the eyes of the law in roadside inspections.

Runnels recommends carriers get ahead of the issue.

“You should be telling drivers, ‘Look, we don’t put up with falsifications. If you’re going to have a problem with your hours, you need to contact us.’ Follow through with that,” Runnels said.

Dispatchers should always work with drivers to ensure they are being assigned loads they can run legally. After all, coercion of drivers to take actions that would result in violations is not only an ethical issue but is also an infraction of the FMCSRs.

Ultimately, while proactive steps should ideally help prevent falsification, Runnels advises all carriers to have a plan in place to monitor drivers’ logs and address any inconsistencies.

(Artificial intelligence detects false electronic logging device (ELD) and Hours-of-Service (HOS) log entries by cross-referencing multi-source data streams and flagging behavioral anomalies that contradict a claimed duty status.

Cross-Referencing Independent Data

• Data Fusion: AI ingests millions of data points, matching ELD digital logs against external, independent validation sources like state turnpike toll timestamps, fuel card swipes, and automated license plate reader (ALPR) or weigh-station camera captures.
•  
• Telematics Mismatch: Machine learning models instantly spot discrepancies where a truck’s engine control module (ECM) or GPS telemetry registers high movement, but the driver’s log records an “off-duty” or “sleeper berth” status.

Behavioral and Pattern Anomaly Detection

• Unassigned Driving Analysis: AI flags clusters of unassigned or “ghost” driving miles—moments where the vehicle moves without an active driver login—and predicts if a driver is covertly operating the truck to bypass rest limits.
• Edit and Tamper Tracking: Algorithms monitor patterns in back-end log edits, frequency of manual status overrides, and suspicious spikes in “personal conveyance” usage to isolate intentional manipulation.
• Network & Device Fingerprinting: Advanced platforms identify anomalous real-time log alterations or sudden data corrections that happen immediately when a commercial vehicle approaches an inspection site or weigh station.)