It depends what kind of protection you need, for what exactly? There is virus protection, which you can achieve by installing an antivirus, and also account protection, personal data, which is very important in my opinion, because nowadays, if someone have this information about you, they can be used in a bad way. To avoid getting scammed and any other kind of fraud, I am using chargeback prevention services, which is specialized in this. This is basically the best way to avoid getting scammed when you visit an unknown website, or buying from somewhere for the first time.