alt Hacker NewsIsn't that the same thing as "not making mistakes"? If you can reduce the blast radius and didn't, wasn't that a major mistake in the first place?
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phil21 • yesterday at 7:48 PM
No, it's recognizing mistakes will be made and no one is perfect. You will also make mistakes regarding blast radius - sometimes the blast doors don't close or function like you thought they would during an actual explosion.
Defense in depth is the idea. Swiss cheese model of failure.
A lot of code is certainly not written careful enough. Plenty examples of plaintext passwords storage in the wild.