CySecBERT: A Domain-Adapted Language Model for the Cybersecurity Domain

• URL: http://arxiv.org/abs/2212.02974v1
• Date: Tue, 6 Dec 2022 13:49:12 GMT
• Title: CySecBERT: A Domain-Adapted Language Model for the Cybersecurity Domain
• Authors: Markus Bayer, Philipp Kuehn, Ramin Shanehsaz, Christian Reuter
• Abstract summary: We present a language model specifically tailored to the cybersecurity domain. The model is compared with other models based on 15 different domain-dependent extrinsic and intrinsic tasks. We show that our approach against catastrophic works, as the model is able to retrieve the previously trained domain-independent knowledge.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The field of cybersecurity is evolving fast. Experts need to be informed about past, current and - in the best case - upcoming threats, because attacks are becoming more advanced, targets bigger and systems more complex. As this cannot be addressed manually, cybersecurity experts need to rely on machine learning techniques. In the texutual domain, pre-trained language models like BERT have shown to be helpful, by providing a good baseline for further fine-tuning. However, due to the domain-knowledge and many technical terms in cybersecurity general language models might miss the gist of textual information, hence doing more harm than good. For this reason, we create a high-quality dataset and present a language model specifically tailored to the cybersecurity domain, which can serve as a basic building block for cybersecurity systems that deal with natural language. The model is compared with other models based on 15 different domain-dependent extrinsic and intrinsic tasks as well as general tasks from the SuperGLUE benchmark. On the one hand, the results of the intrinsic tasks show that our model improves the internal representation space of words compared to the other models. On the other hand, the extrinsic, domain-dependent tasks, consisting of sequence tagging and classification, show that the model is best in specific application scenarios, in contrast to the others. Furthermore, we show that our approach against catastrophic forgetting works, as the model is able to retrieve the previously trained domain-independent knowledge. The used dataset and trained model are made publicly available

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