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1How should sensitive credentials (API keys, passwords) be managed in a Python application rather than hardcoded?Intermediate2How can deserializing data with pickle from an untrusted source lead to remote code execution?Advanced3Why is using eval() or exec() on untrusted input a serious security risk?Intermediate4What is SQL injection, and how do parameterized queries in Python's database libraries prevent it?Intermediate5What risks does using subprocess with shell=True and untrusted input introduce?Advanced
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