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The rapid evolution of cyber threats has highlighted significant gaps in security knowledge integration. Cybersecurity Knowledge Graphs (CKGs) relying on structured data inherently exhibit hysteresis, as the timely incorporation of rapidly…

Cryptography and Security · Computer Science 2026-02-13 Zijing Xu , Ziwei Ning , Tiancheng Hu , Jianwei Zhuge , Yangyang Wang , Jiahao Cao , Mingwei Xu

The automatic extraction of information from Cyber Threat Intelligence (CTI) reports is crucial in risk management. The increased frequency of the publications of these reports has led researchers to develop new systems for automatically…

Information Retrieval · Computer Science 2023-09-11 Francesco Marchiori , Mauro Conti , Nino Vincenzo Verde

Open-source cyber threat intelligence (OSCTI) has become essential for keeping up with the rapidly changing threat landscape. However, current OSCTI gathering and management solutions mainly focus on structured Indicators of Compromise…

Cryptography and Security · Computer Science 2024-11-01 Peng Gao , Xiaoyuan Liu , Edward Choi , Sibo Ma , Xinyu Yang , Dawn Song

Cyber threat intelligence (CTI) is crucial in today's cybersecurity landscape, providing essential insights to understand and mitigate the ever-evolving cyber threats. The recent rise of Large Language Models (LLMs) have shown potential in…

Cryptography and Security · Computer Science 2024-11-12 Md Tanvirul Alam , Dipkamal Bhusal , Le Nguyen , Nidhi Rastogi

Effective incident response (IR) is critical for mitigating cyber threats, yet security teams are overwhelmed by alert fatigue, high false-positive rates, and the vast volume of unstructured Cyber Threat Intelligence (CTI) documents. While…

Cryptography and Security · Computer Science 2025-08-15 Amine Tellache , Abdelaziz Amara Korba , Amdjed Mokhtari , Horea Moldovan , Yacine Ghamri-Doudane

Cyber Threat Intelligence (CTI) mining involves extracting structured insights from unstructured threat data, enabling organizations to understand and respond to evolving adversarial behavior. A key task in CTI mining is mapping threat…

The exponential growth of cyber threat knowledge, exemplified by the expansion of databases such as MITRE-CVE and NVD, poses significant challenges for cyber threat analysis. Security professionals are increasingly burdened by the sheer…

Cryptography and Security · Computer Science 2025-06-10 Xiaoqun Liu , Jiacheng Liang , Qiben Yan , Jiyong Jang , Sicheng Mao , Muchao Ye , Jinyuan Jia , Zhaohan Xi

Cyber threat intelligence (CTI) is practical real-world information that is collected with the purpose of assessing threats in cyber-physical systems (CPS). A practical notation for sharing CTI is STIX. STIX offers facilities to create,…

Cryptography and Security · Computer Science 2022-05-13 Ricardo M. Czekster , Roberto Metere , Charles Morisset

Several recent works have argued that Large Language Models (LLMs) can be used to tame the data deluge in the cybersecurity field, by improving the automation of Cyber Threat Intelligence (CTI) tasks. This work presents an evaluation…

Cryptography and Security · Computer Science 2025-11-13 Emanuele Mezzi , Fabio Massacci , Katja Tuma

To remain aware of the fast-evolving cyber threat landscape, open-source Cyber Threat Intelligence (OSCTI) has received growing attention from the community. Commonly, knowledge about threats is presented in a vast number of OSCTI reports.…

Cryptography and Security · Computer Science 2021-03-02 Peng Gao , Xiaoyuan Liu , Edward Choi , Bhavna Soman , Chinmaya Mishra , Kate Farris , Dawn Song

Cyber threat intelligence (CTI) is central to modern cybersecurity, providing critical insights for detecting and mitigating evolving threats. With the natural language understanding and reasoning capabilities of large language models…

Cryptography and Security · Computer Science 2025-10-15 Yutong Cheng , Yang Liu , Changze Li , Dawn Song , Peng Gao

Cybersecurity researchers have contributed to the automated extraction of CTI from textual sources, such as threat reports and online articles, where cyberattack strategies, procedures, and tools are described. The goal of this article is…

Cryptography and Security · Computer Science 2024-01-04 Md Rayhanur Rahman , Rezvan Mahdavi-Hezaveh , Laurie Williams

The integration of the Internet of Things (IoT) into Cyber-Physical Systems (CPSs) has expanded their cyber-attack surface, introducing new and sophisticated threats with potential to exploit emerging vulnerabilities. Assessing the risks of…

Cryptography and Security · Computer Science 2024-09-25 Braden K Webb , Sumit Purohit , Rounak Meyur

Large Language Models (LLMs) have demonstrated strong capabilities in natural language reasoning, yet their application to Cyber Threat Intelligence (CTI) remains limited. CTI analysis involves distilling large volumes of unstructured…

Cryptography and Security · Computer Science 2026-02-17 Md Tanvirul Alam , Dipkamal Bhusal , Salman Ahmad , Nidhi Rastogi , Peter Worth

The automation of Cyber Threat Intelligence (CTI) relies heavily on Named Entity Recognition (NER) to extract critical entities from unstructured text. Currently, Large Language Models (LLMs) primarily address this task through…

Cryptography and Security · Computer Science 2025-12-23 Jiaren Peng , Hongda Sun , Xuan Tian , Cheng Huang , Zeqing Li , Rui Yan

In response to the escalating cyber threats, the efficiency of Cyber Threat Intelligence (CTI) data collection has become paramount in ensuring robust cybersecurity. However, existing works encounter significant challenges in preprocessing…

Cryptography and Security · Computer Science 2025-06-05 Jamal H. Al-Yasiri , Mohamad Fadli Bin Zolkipli , Nik Fatinah N Mohd Farid , Mohammed Alsamman , Zainab Ali Mohammed

Due to the variety of cyber-attacks or threats, the cybersecurity community enhances the traditional security control mechanisms to an advanced level so that automated tools can encounter potential security threats. Very recently, Cyber…

Machine Learning · Computer Science 2022-11-15 Md Imran Hossen , Ashraful Islam , Farzana Anowar , Eshtiak Ahmed , Mohammad Masudur Rahman , Xiali , Hei

Cyber Threat Intelligence (CTI) has emerged as a vital complementary approach that operates in the early phases of the cyber threat lifecycle. CTI involves collecting, processing, and analyzing threat data to provide a more accurate and…

Cryptography and Security · Computer Science 2026-05-25 Samaneh Shafee , Alysson Bessani , Pedro M. Ferreira

Monitoring the threat landscape to be aware of actual or potential attacks is of utmost importance to cybersecurity professionals. Information about cyber threats is typically distributed using natural language reports. Natural language…

Computation and Language · Computer Science 2024-04-12 Lukas Lange , Marc Müller , Ghazaleh Haratinezhad Torbati , Dragan Milchevski , Patrick Grau , Subhash Pujari , Annemarie Friedrich

Information on cyber-related crimes, incidents, and conflicts is abundantly available in numerous open online sources. However, processing the large volumes and streams of data is a challenging task for the analysts and experts, and entails…

Cryptography and Security · Computer Science 2022-08-03 Tuomas Takko , Kunal Bhattacharya , Martti Lehto , Pertti Jalasvirta , Aapo Cederberg , Kimmo Kaski