VPNs are one of those things businesses hear about all the time—but they’re often not fully understood.
So what does a VPN actually do, and why does it matter?
At its core, a VPN creates a secure connection between two places.
The easiest way to think about it is plumbing.
If you’ve got water in one building and you want to safely get it to another building, you’d run a pipe between them. That pipe carries the water where it needs to go—but doesn’t let anyone else tap into it on the way.
That’s exactly what a VPN does.
It creates a private, encrypted tunnel that lets your data move between locations without exposing it to the wider internet.
Site-to-Site VPN: Connecting Offices
One of the most common uses for a site-to-site VPN is linking different locations together.
Instead of treating offices as separate networks, a VPN allows them to behave like one.
That means staff in one location can securely access:
For businesses with multiple sites, it essentially turns several locations into one connected environment.
Azure VPN and Cloud Access
The same principle applies when connecting to cloud platforms like Microsoft Azure or AWS.
A VPN allows you to create a secure route directly from your office to your cloud environment, rather than exposing systems to the public internet.
That means only authorised users from your network can access those systems.
Remote Access VPN: Secure Home Working
The second main use for a VPN is giving staff secure access from outside the office.
Instead of logging into systems directly over the internet, staff connect into the business first—usually with multi-factor authentication.
Once connected, it’s as if their device is physically in the office.
That gives you far more control over what can and can’t be accessed.
Adding Security Beyond Passwords
Many businesses assume that strong passwords and multi-factor authentication are enough.
But what happens if those credentials are stolen?
With a VPN in place, you can restrict access so systems are only reachable from your network.
So even if someone on the other side of the world has the correct username and password, they still can’t get in—because they’re not connected to your VPN.
That simple control removes a huge amount of risk.
Why Businesses Outgrow TeamViewer
Many businesses start by using tools like TeamViewer, AnyDesk or Chrome Remote Desktop.
For occasional access, these can work well.
The problem comes when they become part of your long-term setup.
You often end up with:
A business VPN moves that control back into the organisation.
Access is centralised, secured, and managed properly.
Why VPN Security Matters
Most cyber issues we see aren’t caused by sophisticated hacking.
They come from exposure.
Systems left open to the internet.
Access available from anywhere.
Too much reliance on usernames and passwords.
A VPN reduces that exposure.
It creates a controlled entry point into your business, rather than leaving systems accessible to the world.
Final Thoughts
A VPN isn’t just about connecting offices.
It’s about controlling access.
When used properly, it lets your business:
And most importantly, it puts control back in your hands.
At Affirm IT, we take a practical approach to VPNs. We don’t start with jargon—we start with simple questions:
From there, we design VPN solutions that match how your business actually works.
If you want to make sure your remote access is secure and under control, don’t hesitate to
get in touch with us.
