---
title: Do Not Pass Sensitive Data In Query String
impact: HIGH
impactDescription: prevents credential leakage in logs and history
tags: url, query-string, sensitive-data, leakage, security
---

## Do Not Pass Sensitive Data In Query String

This rule ensures high quality and security in Python and PySpark applications.

**Implementation Guidance:**
- Follow standard Python best practices (PEP 8)
- Use type hints for better clarity
- For PySpark, prefer DataFrame API over SQL strings where possible
- Ensure proper resource management (using \`with\` statements)