IoT security in 2025: Why “As good as it gets” isn’t good enough

CTOs leading IoT deployments today face a paradox. On paper, their security measures look solid: private APNs, VPN tunnels, strong encryption. For years, these were considered best practice. But in 2025, “as good as it gets” isn’t necessarily enough.

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Thousands of devices = thousands of targets

 

IoT driven enterprises now manage device fleets in the thousands, sometimes millions. Each device is a potential entry point. When they’re distributed across multiple countries and networks, visibility is limited. Even with traditional safeguards, blind spots remain.

 

New regulations mean new responsibilities

 

Frameworks like NIS2 don’t just ask if you’ve “done something” about security. They demand proof that every connection is protected, every risk assessed, and every data flow accounted for. For a CTO, that means being able to answer tough questions at board level:

 

  • Can we demonstrate compliance at any moment?

  • Can we trace exactly how data moves across borders?

  • What happens if regulators, or attackers, knock on our door tomorrow?

 

The performance vs protection trade-off

 

IoT businesses also face a practical dilemma: security can’t come at the cost of performance. EV chargers, logistics trackers, and industrial systems can’t afford latency from overloaded VPNs or downtime from misconfigured APNs. Protecting the business can’t mean slowing it down.

 

 

The reality: “good enough” has moved

 

The truth for IoT leaders is that the baseline has shifted. Yesterday’s measures were fine when IoT was experimental. But now IoT is infrastructure, powering critical services. That raises the stakes. For compliance, for uptime, and for reputation.

 

 

About the author

IXT writes about IoT connectivity because we build it. We’re a Full-MVNO with our own core network and a CMP we designed in-house, so we see what works at scale and what doesn’t. Our team has decades of experience in M2M/IoT, from network engineering to enterprise rollouts, so the guidance we share is practical, vendor-agnostic and field-tested. Connect, secure and manage devices with confidence using our IoT Connectivity.

IXT – Connected. Secure. Everywhere.