Not necessarily. A physical write-enable switch can work, too. (Not a software s... | Hacker News

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		WalterBright on June 23, 2017 \| parent \| context \| favorite \| on: A Cyberattack 'the World Isn’t Ready For' Not necessarily. A physical write-enable switch can work, too. (Not a software switch!)

dredmorbius on June 23, 2017 [–]

Spring-loaded.

See the SR-71 fuel aft transfer switch. Maintaining a forward CG keeps the bird in the air. Control is intentionally manual.

https://www.sr-71.org/blackbird/manual/1/1-62.php

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