Hi people, my first post here. Please bear with me. I just wanna know your opinion about this situation
if someone says to you that the security of an operating system is built on the hardware mechanism that separates user mode from kernel mode which means that an attack that succeeds against one operating system must have broken the hardware mechanism, and therefore the same attack will work against any other operating system on the same type of machine. Thus there can't be any reason to believe that one operating system is more secure than any other.
How would you counteract his invalid argument?