Direct answer to the risks and limitations question
A remote professional or small-business operator should treat VPN evaluation as an operational risk check, not a one-time purchase decision. The main limitation is that a VPN does not automatically guarantee anonymity, safety, or reliable access; those outcomes depend on threat model, device hygiene, account practices, and how the VPN is implemented and used. Another key risk is that performance and availability can vary by network, device, physical location, provider, and time of day. Finally, many current “capability” statements are dynamic, so you should require current, authoritative evidence before relying on them.
How a VPN works in practice (and where problems come from)
A VPN typically creates an encrypted tunnel between your device and a VPN endpoint, then routes traffic through it. Problems can arise when any part of that chain differs from what you tested: your ISP or Wi‑Fi may behave differently, your device’s DNS settings or security software may interfere, captive portals can break connectivity, or the VPN client may mis-handle network changes (like switching from office Wi‑Fi to cellular).
For remote work, operational context matters. Team members may connect from different countries, use different operating systems, and access different internal tools. This makes “works for me” results incomplete if they are not repeated under comparable conditions.
Practical context for remote teams and small offices
Start by defining what you need the VPN to do and what success looks like (for example: protected transport for business apps, consistent access to specific services, or controlled outbound routing). Then identify the limitations you can’t assume away: endpoint trust, credential security, and local device risks. If users keep weak passwords, ignore device updates, or install untrusted software, the VPN cannot compensate.
Operationally, treat the VPN as a system component that can fail. Plan for degraded performance, temporary outages, and routing changes that affect particular applications (streaming, real-time calls, some cloud APIs). If your business relies on a VPN for day-to-day operations, you should also plan an alternative workflow.