Could not agree more. In fact, here is Bruce Schneier's quote[1]:

    Anyone can invent a security system that he himself
    cannot break. I've said this so often that Cory Doctorow 
    has named it "Schneier's Law": When someone hands you a  
    security system and says, "I believe this is secure," the  
    first thing you have to ask is, "Who the hell are you?" 
    Show me what you've broken to demonstrate that your
    assertion of the system's security means something.

[1] https://www.schneier.com/blog/archives/2011/04/schneiers_law...