Last updated: November 2026
It is 7:40 in the morning and Sarah, a freelance accountant, is at the airport. A client needs a signed report before nine, and the file sits on the desktop of her office PC, forty kilometres away. Five years ago that meant a missed deadline. Today she opens her laptop, connects to that office PC in under a minute, sends the report and boards her flight.
That is remote access in one scene. This guide explains how it works, which type suits a small team, and what to set up so that the same convenience does not become a door for attackers.
What is remote access?
Remote access is the ability to use a computer, its files or a company network from another location, over the internet. You see and control the remote device, or you reach its files and applications, as if you were sitting in front of it.
For small teams, remote access usually solves one of three problems:
- Working away from the office: reaching your own desktop, files or business software from home or on the road
- Supporting others: helping a colleague or customer by taking over their screen to fix a problem
- Managing devices: updating, restarting or troubleshooting computers without being on site
How remote access works
Every remote access setup has three parts: the device you work from (the client), the device you connect to (the host) and a way for the two to find each other safely.
Most modern remote desktop tools install a small program, often called an agent, on the host. That agent connects outward to the vendor’s servers. When you log in from your laptop, those servers introduce the two devices and, where possible, set up a direct encrypted connection between them. If a direct connection is blocked by a firewall, the traffic is relayed through the vendor’s servers instead.
Because the host only makes outgoing connections, you do not need to open ports on your router. That is one of the main reasons these tools are safer for small teams than older setups that exposed a computer directly to the internet.
The four main types of remote access
| Type | What it does | Best for | Watch out for |
|---|---|---|---|
| Remote desktop software | Shows and controls a whole computer screen through an app or browser | Freelancers and small teams, IT support | Weak passwords, unattended access left open |
| VPN (virtual private network) | Puts your device on the company network as if you were in the office | Teams with servers, shared drives or internal apps | Unpatched VPN devices, which attackers actively target |
| Built-in Remote Desktop (RDP) | Microsoft’s own protocol, included in Windows Pro | Windows-only offices with an IT person | Never expose RDP directly to the internet |
| Cloud apps and virtual desktops | Your files and software live online, so any device with a browser works | Teams that already work in Microsoft 365 or Google Workspace | Account takeovers if logins are not protected |
Many small teams combine two of these. A common pattern is cloud apps for daily work, plus remote desktop software for the few tasks that still need a specific office computer.
Attended and unattended access
Remote access tools work in two modes, and the difference matters for both convenience and security.
- Attended access: someone sits at the remote computer and approves the connection, usually by sharing a one-time code. This is how most support sessions work.
- Unattended access: you connect to a computer when nobody is there, for example your own office PC at night. The host is always ready, protected by your account login.
Unattended access is the more powerful of the two, and therefore the one to protect most carefully. Turn it on only for devices you really need to reach, and always pair it with two-factor authentication.
How to set up remote access in five steps
- Decide what you need to reach. One computer, a few shared files or a whole network? The answer points you to remote desktop software, cloud storage or a VPN.
- Choose a tool that fits your team size and budget. We compare the main options in our guide to the best remote desktop software.
- Install the host app on the computer you want to reach and set it to start automatically, so it stays available after a restart.
- Secure the account before you use it. Use a unique, long password and turn on two-factor authentication. Our remote access security checklist covers the rest.
- Test from outside your network, for example over your phone’s mobile data, before you depend on it on a trip.
Common mistakes to avoid
- Opening RDP or other remote ports on your router so you can connect “directly”
- Sharing one remote access login across the whole team, so you can never tell who did what
- Using a free personal licence for business work, which several vendors do not allow
- Forgetting to remove access when an employee, freelancer or IT supplier leaves
- Leaving unattended access enabled on computers nobody needs to reach anymore
Frequently asked questions
Is remote access safe?
It is safe when it is set up properly. Use a reputable tool, protect every account with two-factor authentication, keep software updated and never expose remote desktop ports directly to the internet. Most incidents start with stolen passwords or unpatched devices, not with the idea of remote access itself.
Do I need a VPN for remote access?
Not always. If you only need to control one or a few computers, remote desktop software is usually simpler and safer for a small team. A VPN makes sense when people need access to shared drives, servers or internal applications on the office network.
Can I use remote access for free?
Yes. Chrome Remote Desktop is free, and open-source tools such as RustDesk can be self-hosted. Be careful with the free versions of commercial tools: TeamViewer and AnyDesk only allow them for personal use.
What is the difference between remote access and remote support?
Remote access usually means reaching your own devices. Remote support means helping someone else on their device, typically with their permission for each session. Many tools do both, but support-focused tools add features such as session codes, chat and ticketing.
Next step
Now that you know which type of remote access fits your situation, the next decision is the tool. Read our comparison of the best remote desktop software for small teams, with current prices and the free options that are actually allowed for business use.