"I'm convinced my source is safe."

Maybe it makes me a beginner, but I'm not yet convinced my code is safe. Just as well as I'm not convinced my code is free from bugs.

I keep on looking for bugs and security holes in my code, and in my software design, even after it's been put in production. And yes, sometimes I do find things that require an urgent correction.

If that makes me a beginner, so be it.

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Everything went worng, just as foreseen.