# Encoding and Obfuscation Bypass Techniques

> Master encoding and obfuscation techniques used to bypass AI guardrails, including Base64, leetspeak, homoglyphs, and token-level manipulation.

Canonical: https://codelivly.com/rooms/encoding-and-obfuscation-bypass-techniques
Last updated: 2026-10-09

| | |
|---|---|
| Level | Intermediate |
| Category | Cybersecurity |
| Lessons | 3 |
| Estimated time | 30 min |
| XP | 100 |

This module explores how attackers use encoding, obfuscation, and token-level manipulation to evade pre-flight and post-flight AI guardrails. You will learn to bypass keyword filters and semantic classifiers using Base64, leetspeak, homoglyphs, and fragmented payloads, and discover how defenders can implement deterministic decoding and robust input normalization to secure the AI pipeline.

## Lessons

1. What is Encoding-Based Bypass (30 min)
2. Base64, Leetspeak & Character Substitution Techniques (30 min)
3. Language-Switching and Translation-Based Bypass (30 min)

## Related

- [Learning path: Jailbreaking and Guardrail Bypass](https://codelivly.com/learning-paths/jailbreaking-and-guardrail-bypass)
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