Vehicle cybersecurity strategies for fleet managers

As vehicles incorporate more wireless connectivity and software-defined features, their potential for cyberattacks grows. According to The National Highway Traffic Safety Administration (NHTSA), there are three core increases happening in 2026 and beyond that open vehicles and fleets up to new cyber threats:

• Wireless access growth: Nearly all new vehicles today have Wi-Fi, cellular and Bluetooth connectivity, adding potential access points.
• More actuators in safety critical functions (steering, braking, throttle, etc.): These allow more functions to be controlled electronically.
• More software-designed features in modern vehicles: The use of software will only increase in the coming years.¹

Fleet and vehicle cybersecurity is the practice of protecting connected vehicles, telematics systems and driver and fleet data from unauthorized access, disruption or misuse. As fleets become more connected, security increasingly spans both digital systems and physical operations, including the technologies used to monitor vehicles, drivers and cargo.

Effective cyber risk mitigation now requires more than basic cybersecurity hygiene. Fleets need to use strong authentication, manage user permissions, keep software and devices updated and evaluate the security practices of their technology providers.

Fleets can also strengthen their operational response by using telematics to identify activity that may require attention. Near real-time GPS tracking, geofencing and unauthorized-stop notifications can help fleet teams respond more quickly when vehicle activity falls outside expected patterns. 

Together, strong security controls and embedded cybersecurity can help fleets better protect their data, connected assets and day-to-day operations.

How is the fleet security landscape changing?

Common vulnerabilities in fleet security increasingly extend beyond the vehicle itself. Fleet operations depend on interconnected systems for dispatching, routing, driver communications, compliance, billing and vehicle monitoring. 

This creates multiple opportunities for attackers to target people, accounts, connected devices and back-office networks.

Phishing and ransomware remain persistent threats

Cybercriminals can attack in many ways, but a common type of cyberattack is a "phishing" attempt that delivers ransomware to your system. Recently, the FBI warned that cybercriminals are using phishing and other social-engineering techniques to redirect users to malicious sites, potentially gaining access to victim networks that can later be exploited for ransomware or other financial scams.²

Phishing emails and fraudulent websites can be designed to steal credentials or install malware, potentially giving attackers access to business systems and sensitive information. These attacks typically arrive via email, where one unintentional click or download can open a door for hackers. This can lead to system outages that interrupt operations and cause costly downtime. It can also result in compromised or stolen data, which is especially problematic for connected fleets that share a common protocol across all vehicles.

These security concerns in fleet management make employee awareness, strong account controls and careful verification of unexpected requests important parts of fleet cybersecurity.

Strong fleet security starts with drivers who understand how their behavior affects safety and risk. Download 4 steps to strengthen driver behavior and safety culture to learn how technology and coaching can help reinforce safer driving habits.

Artificial intelligence (AI) can make social engineering harder to recognize

AI is also increasing the sophistication of impersonation attempts. The FBI has documented malicious campaigns using AI-generated messages to impersonate trusted individuals, showing how voice-based social engineering can make fraudulent communications more convincing.³

For transportation businesses, that creates an additional reason to independently verify unusual requests involving load assignments, account credentials, payment information or changes to delivery instructions. An attacker may not need to technically compromise a vehicle if they can convince an employee that a fraudulent instruction is legitimate.

That risk is particularly relevant to freight operations. The FBI is warning fleets that cybercriminals were compromising broker and carrier systems through spoofed emails, fake URLs and compromised accounts, then impersonating legitimate businesses and manipulating shipment information to redirect loads.⁴

Your software choice matters when it comes to cybersecurity. Download the Transportation & Distribution Fleet Management Buyer’s Guide to find a secure, reliable platform.

Insecure ELDs and connected devices expand the attack surface

Fleet connectivity also introduces device-level risks. Electronic logging devices (ELDs) synchronize with a vehicle’s engine to record driving data, while telematics and other aftermarket systems can exchange information between vehicles, wireless networks and back-end platforms.

That connectivity is valuable, but every additional interface needs to be considered as part of the fleet’s security posture. Addressing these security vulnerabilities means looking beyond laptops and email accounts. Fleets should consider how connected vehicle hardware is authenticated, updated and integrated with vehicle and enterprise systems—and whether technology providers have appropriate cybersecurity controls in place.

How can fleets build a strong cybersecurity foundation?

Advanced threat detection is important, but it works best on top of strong cyber hygiene. Many data security concerns in fleet management can be reduced by controlling who has access to sensitive information, keeping connected technology updated and limiting the amount of identifiable data exposed unnecessarily.

Here are four foundational safeguards for fleet management security:

1. Restrict access to sensitive fleet data

Not every employee needs access to every piece of information. Dispatchers, drivers, administrators, safety managers and other users may require different levels of access depending on their responsibilities.

Using role-based permissions can help restrict sensitive information and administrative capabilities to the people who need them to perform their jobs. Fleet managers should also regularly review user access, particularly when employees change roles or leave the organization.

2. Have a clear process for software and device updates

Connected fleet technology depends on software and firmware that must evolve as vulnerabilities are discovered. Effective data security measures for connected fleet technology should therefore include knowing how and when devices receive security updates—and confirming that critical patches are actually deployed.

That includes understanding whether updates occur automatically or require action from fleet or IT teams, whether a vehicle must be parked or powered on during an update and how the organization verifies that updates were completed successfully.

3. Limit identifiable driver data when it isn't needed

Fleet data can include vehicle locations, driving behaviors and other information that may be associated with individual drivers. When identifiable information is not necessary for a particular operational or analytical purpose, fleets should consider whether aggregated, anonymized or otherwise de-identified information can accomplish the same goal.

4. Make multi-factor authentication (MFA) and encryption standard protections

Strong authentication adds another barrier between stolen credentials and sensitive fleet systems. The FMCSA has implemented Login.gov-based access for its systems, and its new Motus registration system uses Login.gov to provide the required multi-factor authentication.⁵

Fleet organizations can apply the same principle to their own business-critical systems by enabling MFA wherever it is available. Encryption provides a complementary layer of protection by helping safeguard sensitive information while it is stored or transmitted. Verizon Connect’s systems also offer self-service single sign-on capabilities that help eliminate "login fatigue" while bolstering security by centralizing access control within your identity provider.

Choosing a provider with third-party validation and a track record for data protection is critical. Use our Fleet Management Software Buyer’s Guide to help you evaluate the security protocols of your next technology partner.

Together, access controls, update management, data minimization, MFA and encryption create the basic security layer upon which more advanced fleet monitoring and response capabilities can operate.

Incident response time: Why minutes matter in vehicle cybersecurity

Cybersecurity planning should address what happens after suspicious activity is detected, not just how to prevent it. The speed of modern attacks makes that increasingly important.

Palo Alto Networks' 2026 Unit 42 Incident Response Report found that the fastest 25% of intrusions investigated in 2025 progressed from initial compromise to confirmed data theft in just 72 minutes, compared with 285 minutes in 2024.⁶ While every attack doesn’t follow the same timeline, incident-response procedures increasingly need to support rapid detection, escalation and containment.

Establish a ransomware response policy before an attack

A ransomware incident is a difficult time to decide whether an organization will engage with attackers. Establishing a documented no ransom policy or other predetermined ransomware-response framework can help clarify roles and escalation procedures before the business is under pressure.

The FBI does not support paying ransomware blackmail, noting that payment does not guarantee an organization will recover its data and can encourage attackers to target additional victims. It also recommends regularly backing up data, securing those backups separately from the systems they protect and establishing a business continuity plan before an incident occurs.⁷

An incident-response plan should identify who needs to be contacted, which systems can be isolated, how backups will be accessed and when cybersecurity specialists, legal counsel, insurers or law enforcement should become involved.

Automate detection so teams can respond faster

Fleet incident response also extends to unusual activity involving vehicles and assets. Rather than relying on someone to continually monitor a map, telematics alerts can help surface activity that requires investigation.

For example, fleets can configure alerts for geofence entry or exit events, unexpected ignition, off-hours movement and other activity. Verizon Connect can provide near-real-time geofence notifications when a vehicle or asset moves outside an established virtual boundary.

These alerts do not automatically confirm that theft or a cyberattack has occurred. They give fleet teams information sooner so they can verify what is happening and follow the appropriate response procedure.

The goal is to shorten the gap between detection and action. When cyber incidents can progress in minutes and fleet assets can move just as quickly, predefined escalation procedures and automated alerts can help organizations respond before an abnormal event becomes a larger operational disruption.

Strengthen fleet management security with greater visibility and control

Vehicle cybersecurity is a serious operational priority as fleets rely on more connected vehicles, digital identities, telematics systems and cloud-based tools. Reducing risk requires a combination of strong cybersecurity fundamentals, clear incident-response procedures and technology that helps fleet teams identify unusual activity quickly.

Verizon Connect can support that broader fleet security strategy by giving managers greater visibility into asset activity and user access. Reveal provides near-real-time GPS tracking, geofencing, route and stop alerts, driver ID and multi-user permissions that can help organizations monitor assets, limit access to fleet information and respond more quickly when activity falls outside expected patterns. AI dashcams can add another layer of context by helping document events and support investigations when incidents occur.

For enterprise fleets, Verizon Connect also offers open, web-based APIs that allow Reveal data to be integrated with other backend systems, helping organizations incorporate fleet information into their existing operational and security workflows without requiring fleets to build or code the platform themselves.

Cybersecurity threats will continue to evolve alongside connected vehicle technology. A secure fleet management strategy should evolve with them—combining strong cyber hygiene, trusted technology partners and timely operational data to help protect drivers, vehicles, cargo and critical fleet information.

See how Verizon Connect can help strengthen fleet visibility, security and response. Book a demo today.

Sources

¹ Auto-ISAC Cybersecurity Summit Keynote, The National Highway Traffic Safety Administration

² "Cyber Criminals Redirecting Users to Fraudulent Websites with Malicious Traffic Distribution Systems," The Federal Bureau of Investigation

³ "Senior US Officials Impersonated in Malicious Messaging Campaign," The Federal Bureau of Investigation

⁴ "Cyber-Enabled Strategic Cargo Theft Surging," The Federal Bureau of Investigation

⁵ “Will I need a Login.gov account to use the new registration system?" Federal Motor Carrier Safety Administration

⁶ Global Incident Response Report 2026, Palo Alto Networks

⁷ How We Can Help You, The Federal Bureau of Investigation