They are targeting the 'mum n dad' computer users who know little about anything when it comes to security.
Nordvpn advertise here on TV in OZ, claiming that they stop hackers in their tracks and protect you.
This may be true for MITM attacks and anyone sniffing traffic from your LAN to the WAN (and vise versa), but what about hackers with root access to your machine through previously injected malware from that bad email attachment you opened......or the pop-up software update you clicked on?
Any VPN wont do squat to protect you from this once infected!
It is actually false advertising, but no one with the knowledge, time or money has the gumption to hold them accountable in a court of law, so they get away with it.