Colin Middleton continues his series on what Business owners and senior management should know about their IT. This month the focus is on access to data.

Would You Give Everyone a Key to Your Office?

Imagine giving every employee the same key to your office.

That key opens every room, every cupboard, every filing cabinet. When someone leaves the business, you don’t change the locks. If a key is lost, you simply hope nobody finds it.

It sounds unthinkable.

Yet many businesses take exactly this approach with their IT systems.

Passwords are shared between colleagues, former employees still have access to company systems, and no one is entirely sure who can see what. It often isn’t deliberate—it simply happens over time as the business grows.

The problem is that digital access is just as important as physical access.

Access Isn’t About Trust—It’s About Good Business

One of the biggest misconceptions is that limiting access means you don’t trust your employees.

In reality, it’s the opposite.

Most staff only need access to the information required to do their job. Payroll teams don’t necessarily need access to sales information. Sales teams don’t need access to HR records. Likewise, temporary staff shouldn’t have the same permissions as company directors.

This is known as “least privilege”—giving people access to only what they need, and nothing more.

It’s not about restricting people. It’s about protecting your business.

Every New Starter and Leaver Creates Risk

Every time someone joins your business, they’ll need access to systems, email accounts and files.

Equally, when someone leaves, those same accounts need to be removed or disabled promptly.

Surprisingly, this is one of the most overlooked areas in many SMEs.

Old accounts remain active “just in case.” Shared passwords are never changed. Former employees still have access to cloud services months after they’ve left.

While rare, these oversights can create unnecessary security risks and make it harder to manage your business effectively.

A simple joiner and leaver checklist can prevent many of these issues before they become problems.

Why Shared Logins Cause More Problems Than They Solve

Sharing usernames and passwords might seem convenient.

Perhaps everyone logs into the same email account, or several people use one login for a business application.

The downside is accountability.

If five people use the same account, it’s impossible to know who made a change, deleted a file or accessed confidential information.

Individual accounts provide a clear audit trail, improve security and make managing access far easier.

Think of it this way: if everyone signs the visitors’ book with the same name, you’ll never know who actually came through the door.

What Is Multi-Factor Authentication?

You’ve probably experienced it already.

You enter your password, then receive a code on your phone or approve a notification before you’re allowed in.

That’s Multi-Factor Authentication (MFA).

Some people see it as an inconvenience, but it adds one of the strongest layers of protection available.

Even if someone discovers your password, they still can’t access your account without that second verification.

For a few extra seconds when signing in, you gain a significant reduction in risk.

Ask Yourself Three Simple Questions

You don’t need to know every technical detail, but every business owner should be comfortable answering these questions:

• Who has access to our critical systems?
• Do employees only have access to what they need?
• Are accounts removed promptly when someone leaves?

If the answer to any of these is “I’m not sure,” it’s worth having a conversation with whoever manages your IT.

The Bottom Line

Just as you wouldn’t hand every employee a master key to your office, you shouldn’t give unrestricted access to your business systems.

The right people should have the right access at the right time—and no more.

Getting this right isn’t just about improving security. It protects your data, helps staff work more effectively, and gives you confidence that your business information is in the right hands.

Colin Middleton. Advo IT Specialist