Advancements in cryptanalysis and hacking techniques are constantly reducing the cost of accessing your data without your authorization, making it easier and more attractive for different sides to get it.

I'm not going to get into details about the motivation of each side and the goals they're trying to achieve by obtaining your data. Instead, I would like to focus on the solution to that problem.

In my opinion, the only way to keep your data private is to raise the cost of unauthorized access to it as high as possible. Ideally - raise it so high that it would significantly outweigh any potential reward for the third party.

To raise the cost of unauthorized access to your data - I've developed Midbar (which later on "evolved" into a multi-user Cipherbox, and then it kinda turned back into Midbar because I realized that a "multi-user Midbar" is superfluous and not as stable as a single-user one).