Reply To: Mozilla VPN
From home, dubious. On a public network, like a cafe, essential.
VPN stands for Virtual Private Network and what it does is create an encrypted tunnel between you and a server on the internet. This means that any “man in the middle” attack cannot see your data.
What do I mean by “man in the middle”? Well it’s not too difficult to spoof a cafe’s WiFi so that instead of going through their access point you are going through the bad guys. That means they can capture everything you’re sending and receiving. The VPN doesn’t stop them capturing the data but as it’s encrypted it’s of no use.
At home it’s extremely unlikely that anyone would even be interested in doing that never mind the practicalities involved.
The other use of a VPN is to set up a secure link between a business laptop and it’s office, or between two offices. This also allows the remote end to access things like printers as if they were onsite.
It’s very rare that I feel the need to use a VPN sat here at home, I can’t remember the last time I did.