---
title: Authentication Codes Must Expire Quickly
impact: MEDIUM
impactDescription: limits window for code interception attacks
tags: authentication, codes, expiry, otp, security
---

## Authentication Codes Must Expire Quickly

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)