
Vendor Vetting: Securing Your “Digital Supply Chain”
October 27, 2025As a small to medium-sized business (SMB) in Houston, you rely on connectivity. It’s not just your laptops and servers that are online anymore; it’s your smart thermostats, security cameras, smart lighting, and even the office coffee machine. This vast, expanding network of interconnected devices is known as the Internet of Things (IoT), and it forms your “unseen network.”
While IoT brings convenience and efficiency, it also introduces serious, new security challenges. Every smart device is a potential back door for cybercriminals. If you’ve secured your PCs but neglected your smart printer, you’ve left a window wide open.
Krypto IT is here to help you understand and secure this rapidly growing digital frontier.
The Hidden Risks of the “Smart” Office
Why are IoT devices so dangerous to an SMB? They typically lack the robust security features found in traditional computers and servers, yet they are fully connected to your critical business network.
1. Weak Default Security
Most IoT devices are designed for convenience and low cost, not security. They often ship with easily guessable default usernames and passwords (admin/12345), which many users forget or neglect to change. A single exposed smart camera with default credentials can be the easiest entry point for a hacker to map your entire network.
2. Lack of Updates and Patches
Unlike business-grade operating systems that regularly push security patches, many consumer-grade IoT devices receive little to no security updates once they hit the market. This leaves them permanently vulnerable to exploits that are often publicly known. Over time, these unpatched devices become ticking time bombs on your network.
3. Network Congestion and Performance Issues
An infected or compromised IoT device can be hijacked to participate in massive botnet attacks (like DDoS attacks). This botnet activity can slow down your entire network, cripple your internet bandwidth, and directly impact your business operations and employee productivity.
5 Steps to Securing Your Unseen Network
Securing your IoT devices doesn’t have to be complex, but it requires strategy. Here are five actionable steps Krypto IT recommends for every SMB:
1. Inventory Everything Connected
You can’t secure what you don’t know exists. Start by creating a detailed inventory of every single device connected to your network, including:
- Security & Surveillance: Cameras, smart locks, doorbells.
- Office Efficiency: Smart printers, conference room displays, voice assistants.
- HVAC & Utilities: Smart thermostats, sensors, and power monitoring tools.
If it has an IP address and connects to Wi-Fi, it must be on the list.
2. Isolate IoT Devices on a Separate Network (VLAN)
This is the most critical step. Never allow IoT devices to share the same network as your employee workstations and critical servers. Krypto IT can set up a Virtual Local Area Network (VLAN) to create a digital “quarantine zone” for your IoT devices.
If the smart lighting system is breached, the attacker only has access to that isolated IoT network, not your customer database or financial files.
3. Change ALL Default Credentials—Immediately
If you can, do this before the device is ever connected to your network. Change the default password to a complex, unique password using a password manager and enforce a policy that all employees must do the same for any new office device.
4. Regularly Check for Firmware Updates
While some devices are poorly supported, you are responsible for updating the ones that do offer patches. Schedule a recurring quarterly check to update the firmware on all network-connected devices, particularly routers, modems, and security equipment.
5. Review Vendor Security (Before You Buy)
Just as you vet software vendors, you must vet hardware vendors. Before purchasing a new IoT device, check the manufacturer’s commitment to security. Do they offer a vulnerability reporting program? Do they publish a privacy policy regarding the data collected by the device? Prioritize known, reputable business-grade equipment over cheaper, consumer-grade alternatives.
The Managed Approach to IoT Security
For the overwhelmed SMB owner, managing a mixed network of PCs, laptops, and dozens of IoT devices is impossible without dedicated IT staff. This is where partnering with a Managed Service Provider (MSP) like Krypto IT becomes essential.
Krypto IT specializes in securing these modern, complex networks. We manage your security stack, including:
- Network Segmentation: Setting up and managing the VLANs that separate your critical data from your IoT devices.
- Device Auditing: Regularly scanning your network for unauthorized (Shadow IT) or vulnerable IoT devices.
- Policy Enforcement: Ensuring all devices, from laptops to smart thermostats, adhere to the same high security standards.
Don’t let your smart office become a hacker’s playground. Contact Krypto IT in Houston today to secure your entire, seen and unseen, network.
Secure Your Smart Devices. Contact Krypto IT Today.




