---
title: Always Use TLS For All Connections
impact: HIGH
impactDescription: protects data in transit from eavesdropping
tags: tls, https, encryption, transport, security
---

## Always Use TLS For All Connections

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)