Adam Dalton author Ehsan Aghaei author Ehab Al-Shaer author Archna Bhatia author Esteban Castillo author Zhuo Cheng author Sreekar Dhaduvai author Qi Duan author Bryanna Hebenstreit author Md Mazharul Islam author Younes Karimi author Amir Masoumzadeh author Brodie Mather author Sashank Santhanam author Samira Shaikh author Alan Zemel author Tomek Strzalkowski author Bonnie J Dorr author 2020-may text English eng European Language Resources Association Marseille, France conference publication 979-10-95546-39-9 We describe a system that supports natural language processing (NLP) components for active defenses against social engineering attacks. We deploy a pipeline of human language technology, including Ask and Framing Detection, Named Entity Recognition, Dialogue Engineering, and Stylometry. The system processes modern message formats through a plug-in architecture to accommodate innovative approaches for message analysis, knowledge representation and dialogue generation. The novelty of the system is that it uses NLP for cyber defense and engages the attacker using bots to elicit evidence to attribute to the attacker and to waste the attacker’s time and resources. dalton-etal-2020-active https://www.aclweb.org/anthology/2020.stoc-1.1 2020-may 1 8