If there is one place where an appeal to authority argument can hold place and not be seen as a fallacy is security. (it's not ad hominem btw) When you're roll

If there is one place where an appeal to authority argument can hold place and not be seen as a fallacy is security. (it's not ad hominem btw) When you're rolling out a secure system + implementation you want to use algorithms that have been proven, tested and certified as correct. It's a delicate field that can't be approached like your standard software development field. Yes, being a "random" and developing your own encryption algorithm out of the box is bad. Never trust anything like that. Period.