Go online and it means leaving a digital trace that can potentially reveal information that you'd probably much rather stayed private. That's where a virtual private network – aka a VPN – can help to ensure anonymity and privacy when online.
It works by encrypting data and masking your IP address to ensure any would-be malicious actors or advertising profilers are blocked out. Or, in the case of geo-restrictions, quite the opposite, as you are allowed in where a block might otherwise restrict access.
