There is a difference between security/privacy, and anonymity. As we wrote in our public threat model(new window) (published back in 2014), “The Internet is generally not anonymous, and if you are breaking Swiss law, a law-abiding company such as Proton Mail can be legally compelled to log your IP address.” This cannot be changed due to how the internet works. However, we understand this is concerning for individuals with certain threat models, which is why since 2017, we also provide an onion site for anonymous access (we are one of the only email providers that supports this).