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Ted comments on this post in the article that it critiques. I do know that rust has important tools for writing secure programmes but using them is not really enforced (ie unsafe {}), thus it's possible to write exploitable bug in it. I want to note that I never used it though.

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In the end it's possible in any language to produce exploitable bug (apart from maybe Erlang VM?). The point is about 1) how hard (probable) it is, 2) how popular are error checking tools (C static analyzers, Google Thread Sanitizer, etc), and 3) how fast can the culprit code be found and fixed.

In that regard Rust has reduced both 1) and 3) by only exposing dangerous features in unsafe {}, and greatly improved 2) since the compiler itself is checking those errors.

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