What is a VPN and should I use one?
What is a VPN and should I use one?
user
A Virtual Private Network is a technology that allows you to securely share data with computers over a network, without needing to trust the intermediary computers with your data.  VPNs are useful when you’re working from multiple computers (for example, in an internet cafe or if you have multiple devices) or if you’re using untrusted network infrastructure (for example, a public WiFi network).
assistant
So is it more secure?
user
It depends how you use it. If you’re just browsing the web and sending e-mail, it might not be more secure, since the increased privacy comes with some added complexity.  If you’re doing a more sensitive task, such as online banking, it may make sense.  VPNs are a balance of security, privacy, and convenience.  I’d recommend looking at a couple and trying them out to see if you find any that work well for you.
assistant
Do VPNs cost money, or are they free to use?
user
There are free ones out there, but in general you’ll find that they’re quite cheap.  Companies sometimes use them for things like blocking public access to their corporate networks, but you might also find some excellent ones if you search on “best VPNs”, for example.
assistant
Do you know any that are trustworthy and highly rated?
user
I’d recommend “Express VPN”, which appears to be pretty good and trustworthy.
assistant
Would you recommend that I use one?
user