Unfortunately, you can forget about privacy and personal data protection in the twenty-first century. Major brands or websites say that they have the best security protection installed, which will not allow hackers to break into the system. However, people are already aware of several dozen cases of database draining.
There are still some protocols to become a little more invisible and difficult to track, sometimes people make use of VPN, others can confuse VPN with proxy, the case of the browser tor, many believe that it has VPN activated and it is a proxy, then every time That we want to seek privacy is very difficult, some sites have such security that they are able to decipher when they use VPN, free VPNs are the most distrustable, if we currently seek to have more privacy would seek to make a virtual machine and use more protocols.
If the sites have the required security, there are still many violations, not everything is exempt from being attacked, there are many ways that hackers get private data, the most common are ransomwares.
You move in the city with thousands street cams, pay everyday with named credit card, post photos with geo in social networks and believe that VPN will save your anonymity. There is no more anonymity in the internet. Using VPN can just give you an access to the blocked sites and, possible, little increase the time that someone needs to find you. The main reason that we are not classified and marked till now - no one is interesting in our personal data.