Norco Technologies Blog

Why One Shared Network Creates Unnecessary Risk

Connecting to the same network does not automatically give a visitor access to every business file. Your passwords, device security settings, and user permissions still apply.

However, a device on the same network may be able to find or contact systems that it does not need to use. This could include a printer, shared folder, storage device, camera, or poorly protected management page.

An infected device may also try to connect to other devices on the network. If the network is divided into separate sections, those connections can be blocked before they reach your business systems.

The UK’s National Cyber Security Centre explains that network segmentation restricts movement between systems. If one device is compromised, separating the network reduces the number of other systems it can contact.

Separating the networks reduces risk by blocking access that visitors and unmanaged devices do not need.

Many businesses use Power Automate or Zapier to move information between apps. One workflow might copy website enquiries into the CRM. Another might save invoice attachments into the right folder. A workflow is just a set of steps that runs automatically.These workflows are often built under one employee’s account. They may also use that person’s login to read a mailbox or update another system. If the employee leaves and their account is disabled, those connections may stop working.

Employees often use personal devices for work before the business has made a decision about it. They add work email to a phone, download a file to a home laptop, or sign into a company app from a computer shared with family.

Once business data is stored on a personal device, you have less control over updates, installed apps, backups, and who else uses the device. You also need a way to remove company data when the employee leaves or the device is lost.
Personal devices can be allowed, but the business should decide which devices, applications, and types of work are permitted.

If your business runs on Microsoft 365, you've got two places to store files: OneDrive and SharePoint. Most people are never told the difference, so files end up wherever is easiest, spread across OneDrive, SharePoint, Teams, and the desktop.

That's how you end up with the everyday headaches: a file nobody can find, a document only one person can open, and a scramble to recover someone's work after they leave. The rule for where things should go is simple once you know what each one is for.

Most IT problems don't appear out of nowhere. Backups quietly stop running, updates sit unfinished for weeks, and old staff accounts stay switched on for months. A short check once a month catches these while they're still cheap to fix. This post covers the six things to look at.

Most owners only look at their IT when something has already gone wrong. A file won't open, a laptop won't start, or an invoice gets paid into a scammer's account. Fixing it at that point costs more than preventing it would have.

Almost none of it happens without warning. The backup that fails when you finally need it had been failing for weeks. The account a scammer used belonged to someone who left last year. Thirty minutes a month is usually enough to catch that kind of thing.