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No amount of source-level verification or scrutiny will protect you from using untrusted code.
Ken Thompson
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Interpretation

What this quote means

One must be cautious with external code as no verification can guarantee its trustworthiness.

Ken Thompson highlights the inherent risks associated with using third-party code, suggesting that despite thorough checks and validations, external code can still harbor vulnerabilities or malicious intentions. This serves as a cautionary reminder for programmers and developers to approach untrusted code with vigilance and skepticism, understanding that verification alone is not foolproof protection.

Themes

CodeTrustSecurityVerificationProgrammingRisk

In practice

Example use cases

In a tech conference presentation discussing the importance of code security, this quote can illustrate the risks of adopting external libraries.

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Quote by Ken Thompson | QuoteProject