> System security is intimately connected with the idea of knowing the name of a process. If we do not know the name of a process we cannot interact with it in any way, thus the system is secure. Once the names of processes become widely know the system becomes less secure. We call the process of revealing names to other processes in a controlled manner the name distribution problem— the key to security lies in the name distribution problem. When we reveal a Pid to another process we will say that we have published the name of the process. If a name is never published there are no security problems.
> Thus knowing the name of a process is the key element of security. Since names are unforgeable the system is secure only if we can limit the knowledge of the names of the processes to trusted processes.
https://erlang.org/download/armstrong_thesis_2003.pdf (page 24-25)