This research introduces EDDF (Essence-Driven Defense Framework), a novel approach that identifies and blocks the fundamental principles behind jailbreak attacks rather than just their surface manifestations.

• Creates a taxonomy of attack essences that categorizes core jailbreak strategies
• Develops a defense system that can recognize the underlying intent even when attack wording changes
• Demonstrates superior protection against both known and novel jailbreak attempts
• Provides a more sustainable security approach as attackers continuously evolve their techniques

For security professionals, this research represents a significant advancement in protecting AI systems from malicious manipulation while maintaining their utility for legitimate users.

Beyond Surface-Level Patterns: An Essence-Driven Defense Framework Against Jailbreak Attacks in LLMs