When organizations think about cybersecurity threats, they tend to focus on the obvious: phishing emails, ransomware attacks, or sophisticated nation-state exploits. And while those threats are very real, they often overshadow a quieter, more insidious risk—everyday devices that sit right under our noses.
USB ports, office printers, and IoT-enabled devices like smart speakers are rarely the stars of security conversations. Yet, these seemingly harmless tools can sometimes act as powerful entry points into corporate networks when they are left unsecured. As attack surfaces expand and environments become more connected, these overlooked endpoints are becoming increasingly attractive to cybercriminals.
This blog will dive into the surprising IoT entry points into corporate networks and how organizations can prevent cybercriminals from taking advantage of them.
Today’s workplaces are no longer confined to a handful of desktops and servers. Hybrid work, bring-your-own-device (BYOD) policies, and the rise of smart office technology have dramatically increased the number of devices connecting to corporate networks.
From wireless printers and conference room assistants to personal USB devices and smart displays, the average office now hosts dozens—if not hundreds—of endpoints that fall outside traditional security controls.
The challenge is that many of these devices:
All of these potential vulnerabilities create a perfect storm: a large, diverse attack surface with significant blind spots. Attackers don’t always need to break through your strongest defenses, they just need to find the weakest link.
USB Ports: A Direct Line into Your Systems
USB ports are one of the simplest ways to bridge the gap between the physical and digital worlds. That convenience is exactly what makes them dangerous.
An infected USB drive can introduce malware directly onto a system, bypassing perimeter defenses like firewalls and email filters. In some cases, malicious code can execute automatically when the device is plugged in, giving attackers immediate access.
There’s also a strong human factor at play. One of the most common and dangerous attacks– the USB drop attacks – rely on human curiosity. Attackers leave infected drives in public places or office environments, knowing that someone will likely plug one in eventually. Even well-intentioned employees can unknowingly introduce risk by using personal USB devices or transferring files without proper scanning.
Beyond malware delivery, specialized USB devices can emulate keyboards or network adapters, allowing them to execute commands or redirect traffic within seconds of being connected.
How to reduce the risk:
Printers are among the most overlooked devices in corporate environments. Despite functioning as full-fledged networked computers, they are often treated as simple utilities and left out of security planning.
Modern printers can store sensitive data, including copies of recently printed documents. They connect to networks, support remote access, and run embedded operating systems, which puts them square in cybercriminals’ crosshairs.
If compromised, a printer can serve as a foothold for attackers to:
There have been real-world cases where attackers exploited unsecured printers to gain access to broader systems, simply because those devices were not monitored or properly configured.
The risk is amplified by the fact that many printers are deployed with default credentials, rarely updated, and placed on the same network segment as critical systems.
How to reduce the risk:
Smart speakers and other IoT-enabled devices are increasingly common in offices. They help schedule meetings, control conference rooms, and provide hands-free convenience. But behind that convenience lies a new category of risk.
These devices are:
Because they fall outside traditional endpoint categories, IoT devices are frequently excluded from security policies, patch management, and monitoring tools.
If compromised, an IoT device can allow attackers to listen to conversations or footage, provide attackers with a foothold into the network, or be leveraged as part of a botnet or lateral movement strategy.
Even if the device itself doesn’t store critical data, its position within the network can make it a valuable stepping stone.
Check out this great blog to learn more: The Hidden Dangers of IoT: When Your Smart Devices Turn Against You
How to reduce the risk:
What ties all of these risks together is not just vulnerability, it’s a lack of visibility and assumptions being made.
Security programs are typically built around known, managed assets like laptops, servers, and cloud infrastructure. Peripheral devices and IoT endpoints often operate outside these frameworks, creating gaps in visibility and control.
There’s also a tendency to assume that “low-risk” devices don’t require the same level of scrutiny. Attackers, however, thrive on these assumptions. They actively seek out overlooked systems that can provide an easier path into more valuable targets.
To address these challenges, organizations need to expand their definition of what constitutes an endpoint. Anything that connects to your network—no matter how small or seemingly insignificant—should be accounted for in your security strategy.
A more resilient approach includes:
Cybersecurity isn’t just about defending against high-profile threats, it’s about closing the gaps that attackers quietly exploit.
USB ports, printers, and IoT speakers may not seem like obvious risks, but they can offer attackers exactly what they need: a low-friction entry point into your environment. As corporate networks continue to grow more complex and interconnected, these overlooked devices will only become more attractive targets.
By broadening visibility, enforcing consistent security controls, and challenging assumptions about what is “safe,” organizations can better protect themselves against the threats that don’t make headlines, but can cause just as much damage.
