You are misunderstanding what I am saying. I am saying that it only takes one person who finds a vulnerability to disclose it, to a first approximation. Realistically it’s probably closer to 2-3 since the first might be working for the NSA, the CCP, etc. I am making no arguments about what amount of effort it takes to find a vulnerability, just talking about how not every single user of a piece of code needs to verify it.