What I have learned about crypto is that there people that understand it well. And those people are not random strangers, they are security experts.

And even then if you found good solid well supported security advice from reputable sources but they are 10 years old... You are still insecure.

Therefore modern up to date information from reputable sources is the only true way to stay secure. Its a running battle not a static one.

I feel you have assumed I meant something entirely different.