“You can't trust code that you did not totally create yourself. (Especially code from companies that employ people like me.)”

—  Ken Thompson

"Reflections on Trusting Trust" http://cm.bell-labs.com/who/ken/trust.html, 1983 Turing Award Lecture, Communications of the ACM 27 (8), August 1984, pp. 761-763.
Context: You can't trust code that you did not totally create yourself. (Especially code from companies that employ people like me.) No amount of source-level verification or scrutiny will protect you from using untrusted code.

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American computer scientist, creator of the Unix operating … 1943

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