do-review-elixir

The code is security guidance containing explicitly vulnerable examples. Code.eval_string/1 on external input is a critical arbitrary-code-execution pattern, and binary_to_term/1 without [:safe] is unsafe for untrusted data. Dynamic module resolution from input should be replaced by the provided fixed allowlist. The fragment itself shows no malware, exfiltration, persistence, or obfuscation; risk applies if the vulnerable examples are deployed.