Your web traffic is protected after you sign your VPN service contract and you activate the network on a device. However, this does not mean that every single VPN you find online is suitable. There are different things that you have to consider and you always have to conduct a little research in order to find the best service for your particular needs. Remember that the VPN provider can record internet activity and spy on what you do. That is why you need to completely trust the provider.
If you do a simple Google search you will find hundreds of VPN providers. There are also different articles that talk about some of them. For instance, you can read about the best VPNs for MAC users. Such articles are valuable but it is always a good idea to know the most important things you have to consider, which will be presented below.