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The "Bug-Free Software" fallacy

For patching the unpatchable

About 20 years ago, I worked with a fellow who proudly told me that he had once written a flawless piece of software. He kept its inch-thick line printer listing as a shrine in his cubicle. I never asked him for details, because he got angry when people questioned his judgement on computing. After all, he had once been in a panel discussion with Grace Hopper!

I have my own Grace Hopper stories, but today's interesting panel discussion took place earlier in December at the 2013 ACSAC in New Orleans. Roger Schell, a luminary in the annals of cyber security, declared that 1980s techniques had indeed created "bug-free software."

Roger Schell is wrong.

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