Clark: Why traditional antivirus software is putting your business at risk

Cyber risks are evolving faster than fleets can react, and outdated antivirus tools are becoming a hidden liability for trucking operations.
Dec. 1, 2025
3 min read

Key takeaways

  • Outdated antivirus tools leave fleet networks exposed to modern, stealthy cyberattacks.
  • Endpoint detection and response provides real-time visibility across fleet devices, reducing the blind spots that attackers exploit.
  • Pairing EDR with a security operations center helps fleets catch threats early and prevent costly operational disruptions.

Trying to keep your company safe from bad actors can feel like an endless game of digital whack-a-mole. Just as you block one threat, a new tactic emerges, often faster and more sophisticated than the last. The result is a situation where reacting isn’t enough, and outdated defenses quietly create blind spots that attackers are more than happy to exploit.

Since attacks too often result from simple missteps by businesses, cybercriminals no longer need to be digital geniuses. They just need to understand human behavior and exploit that. There are so many ways that bad actors can attack businesses, from phishing to social engineering to business email compromise (BEC) and more. Too many organizations may be complacent, thinking they’ve covered all their bases when it comes to protecting their data, reputation, and bottom line.

At a recent NationaLease meeting, Russ Abdrakhmanov of Nekey Cybersecurity outlined cybersecurity habits every company should practice in order to protect its most valuable asset: data. He described these habits as dominoes because when one falls, the rest can topple with surprising speed.

Legacy antivirus exposes fleet systems to modern cyber threats

The tactics criminals use today look nothing like the viruses of years past. Many modern attacks remain invisible for long stretches of time, allowing damage to grow before anyone notices. That’s why relying on outdated antivirus software is the first domino, and the easiest one, to fall.

Traditional viruses are largely gone. Malware today disguises itself, moves laterally through networks, and often leverages legitimate tools already inside your environment. If your protection strategy still depends on legacy antivirus tools designed for yesterday’s threats, your business is already exposed. Modern cybersecurity requires next-gen antivirus and endpoint detection and response (EDR).

EDR doesn’t just stop known threats; it identifies unknown and unseen ones by detecting irregularities in everyday system activity. It monitors laptops, servers, mobile devices, and more, using AI and machine learning to analyze threats in real time and enable rapid response. Whether your team is in-office, remote, or hybrid, EDR provides visibility and protection where traditional antivirus simply can’t. It fills the gaps left by legacy tools and gives businesses the situational awareness needed to act before incidents escalate.

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Core cybersecurity steps to strengthen fleet data protection

Abdrakhmanov recommends businesses begin strengthening their cybersecurity posture with three essential steps:

  1. Stop using traditional, outdated antivirus tools.
  2. Adopt a modern next-gen AV (EDR) solution.
  3. Enhance that EDR with a dedicated SOC (security operations center).

As cyber threats evolve faster than ever, the first domino, relying on outdated antivirus tools, can topple the rest before you even realize there’s a problem. Modern protection isn’t optional; it’s the foundation of a resilient security posture. By embracing next-gen solutions like EDR and bolstering them with a vigilant SOC, businesses can shift from endless defense to proactively securing their data, operations, and future. The right habits, implemented now, can prevent a single misstep from becoming a costly chain reaction.

About the Author

Jane Clark

Senior VP of Operations

Jane Clark is the senior vice president of operations for NationaLease. Prior to joining NationaLease, Jane served as the area vice president for Randstad, one of the nation’s largest recruitment agencies, and before that, she served in management posts with QPS Companies, Pro Staff, and Manpower, Inc.

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