You’ve probably heard of IoT, the Internet of Things. It’s everywhere these days, and even if you haven’t paid much attention, chances are you’re already using IoT devices in your daily life. As internet-based technology continues to spread, IoT has become unavoidable — but its widespread adoption also brings new cybersecurity challenges. We can’t escape the trend, but we can learn to use it securely.
Why IoT Security Lags Behind Everything Else
Traditional computers and phones get regular, often automatic security updates, and users have grown accustomed to installing them. IoT devices frequently don’t work this way: manufacturers may stop supporting firmware updates after a product is discontinued, update mechanisms are often clunky or manual, and many devices simply weren’t designed with long-term security maintenance in mind at all. A smart thermostat or connected camera purchased three years ago may never receive another security patch, quietly becoming a permanent, unfixable weak point on your network for as long as it stays plugged in.
Exploring IoT Devices
If a device connects to the internet, it likely falls under the category of IoT. Beyond computers, phones, and tablets, think about your smart TV, your connected car, or your internet-enabled washing machine. If a device has “smart” capabilities and connects online, it’s part of the Internet of Things — a rapidly expanding landscape covering everything from household appliances to industrial equipment.
The Convenience Trade-Off Nobody Discusses Upfront
IoT devices sell themselves on convenience, and that framing tends to crowd out any conversation about security until something goes wrong. A smart lock that lets you grant remote access to a contractor is genuinely useful; it’s also a device controlling physical access to your building that now depends on network security, app security, and cloud service security all working correctly at once. The convenience is real, but so is the expanded set of things that have to go right for that convenience not to become a liability.
The Proliferation of IoT Devices
IoT connections are expected to reach 29 billion by 2027. You likely already have several in your household — a smart assistant, a smart TV, a doorbell camera. These gadgets add convenience, but the simultaneous connection of numerous devices to your network, often without adequate monitoring, gives rise to security risks that didn’t exist before.
How Secure Are IoT Devices?
Cybersecurity spending is a clear priority: the US allocated an estimated $15.6 billion toward cybersecurity in 2023 alone, and that number keeps climbing. Add IoT to the mix, and it’s the wild west of technology — from network breaches to crypto mining schemes, the range of attacks leveraging IoT vulnerabilities keeps expanding.
Common IoT vulnerabilities include:
- Weak passwords — many IoT devices ship with default or weak passwords users never change, giving hackers a foothold into the entire network if compromised.
- Shared network access — IoT devices often connect directly to private networks, so a single breach can expose sensitive data elsewhere.
- Inconsistent security standards — the IoT market lacks consistent standards; many devices lack encryption or timely security updates.
- Lack of visibility — with so many connected devices in homes and workplaces, it’s difficult to track them all and spot unauthorized additions.
A few prominent IoT security incidents illustrate the scale of the issue: the Mirai Botnet attack (2016) used compromised IoT devices to launch massive DDoS attacks disrupting internet services globally; the Verkada security camera hack (2021) exposed sensitive footage from over 150,000 cameras, including at Tesla factories and hospitals; and the Bigpanzi botnet (2015-2023) infected millions of Android TV boxes to build a large-scale botnet for illicit activity.
Protecting Your IoT Devices
- Device inventory — maintain an up-to-date inventory of everything connected to your network.
- Physical security — protect IoT devices from tampering, especially in unsecured environments.
- Network segmentation — isolate IoT devices from critical systems to limit the impact of any breach.
- Feature management — disable unused features and services to reduce the attack surface.
- Password security — change default passwords immediately and use MFA wherever possible.
- Regular updates — keep firmware and security patches current.
- Wi-Fi encryption — enable strong encryption (WPA3) to protect data between devices and your router.
A Practical Starting Point
If a full IoT security overhaul feels overwhelming, start with network segmentation alone. Placing IoT devices, cameras, thermostats, point-of-sale systems, on a separate network segment from your servers and workstations means a compromised smart device can’t directly reach your critical systems even if it’s breached. This single step addresses the highest-severity risk (lateral movement from a compromised low-security device into high-value systems) without requiring a device-by-device audit as a prerequisite.
IoT in the Workplace, Not Just at Home
Business IoT exposure often gets overlooked because it doesn’t look like a “device” in the traditional sense: networked security cameras, smart thermostats controlling server room climate, point-of-sale terminals, badge readers, even smart conference room displays all connect to the same network as your critical business systems. A single unpatched security camera on the same flat network as your file server isn’t a minor gadget risk, it’s a potential entry point directly into the data that actually matters. Businesses evaluating their security posture should inventory workplace IoT with the same seriousness as laptops and servers, not treat it as an afterthought because it doesn’t look like a “real” computer.
In Conclusion
There are a lot of IoT devices out there — each one a potential vulnerability. As IoT continues to integrate deeper into our daily lives, it’s more important than ever to understand exactly what’s connected to your network. Stay informed, update regularly, and work with your IT team to keep your IoT footprint secure.
Got questions, or just looking to learn more about protecting your network? CelereTech has you covered — reach out today.
