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Verifying the credibility of Cyber Threat Intelligence (CTI) is essential for reliable cybersecurity defense. However, traditional approaches typically treat this task as a static classification problem, relying on handcrafted features or…

Cryptography and Security · Computer Science 2025-07-16 Fengxiao Tang , Huan Li , Ming Zhao , Zongzong Wu , Shisong Peng , Tao Yin

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

Effective Cyber Threat Intelligence (CTI) relies upon accurately structured and semantically enriched information extracted from cybersecurity system logs. However, current methodologies often struggle to identify and interpret malicious…

Cryptography and Security · Computer Science 2026-04-28 Luca Cotti , Anisa Rula , Devis Bianchini , Federico Cerutti

This work evaluates the performance of Cyber Threat Intelligence (CTI) extraction methods in identifying attack techniques from threat reports available on the web using the MITRE ATT&CK framework. We analyse four configurations utilising…

Cryptography and Security · Computer Science 2025-05-07 Hoang Cuong Nguyen , Shahroz Tariq , Mohan Baruwal Chhetri , Bao Quoc Vo

Organizations are increasingly targeted by Advanced Persistent Threats (APTs), which involve complex, multi-stage tactics and diverse techniques. Cyber Threat Intelligence (CTI) sources, such as incident reports and security blogs, provide…

Cryptography and Security · Computer Science 2025-04-09 Sofia Della Penna , Roberto Natella , Vittorio Orbinato , Lorenzo Parracino , Luciano Pianese

To address the increasing complexity and frequency of cybersecurity incidents emphasized by the recent cybersecurity threat reports with over 10 billion instances, cyber threat intelligence (CTI) plays a critical role in the modern…

Cryptography and Security · Computer Science 2024-06-04 Hangyuan Ji , Jian Yang , Linzheng Chai , Chaoren Wei , Liqun Yang , Yunlong Duan , Yunli Wang , Tianzhen Sun , Hongcheng Guo , Tongliang Li , Changyu Ren , Zhoujun Li

Large language models (LLMs) are increasingly used to help security analysts manage the surge of cyber threats, automating tasks from vulnerability assessment to incident response. Yet in operational CTI workflows, reliability gaps remain…

Cryptography and Security · Computer Science 2026-05-29 Yuqiao Meng , Luoxi Tang , Feiyang Yu , Jinyuan Jia , Guanhua Yan , Ping Yang , Zhaohan Xi

The swift spread of fake news and disinformation campaigns poses a significant threat to public trust, political stability, and cybersecurity. Traditional Cyber Threat Intelligence (CTI) approaches, which rely on low-level indicators such…

Cryptography and Security · Computer Science 2025-10-20 Domenico Cotroneo , Roberto Natella , Vittorio Orbinato

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

Large Language Models (LLMs) are intensively used to assist security analysts in counteracting the rapid exploitation of cyber threats, wherein LLMs offer cyber threat intelligence (CTI) to support vulnerability assessment and incident…

Cryptography and Security · Computer Science 2025-10-03 Luoxi Tang , Yuqiao Meng , Ankita Patra , Weicheng Ma , Muchao Ye , Zhaohan Xi

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

Attribution of cyber-attacks remains a complex but critical challenge for cyber defenders. Currently, manual extraction of behavioral indicators from dense forensic documentation causes significant attribution delays, especially following…

Cryptography and Security · Computer Science 2025-05-20 Kyla Guru , Robert J. Moss , Mykel J. Kochenderfer

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

Extracting MITRE ATT&CK techniques from cyber threat intelligence (CTI) reports is an open-set, multi-label problem requiring both high recall (not missing techniques) and high precision (not hallucinating unsupported ones). Existing…

Cryptography and Security · Computer Science 2026-05-26 Yutong Cheng , Changze Li , Raihan Sultan Pasha Basuki , Qian Cui , Wei Ding , Peng Gao

The volume, variety, and velocity of change in vulnerabilities and exploits have made incident threat analysis challenging with human expertise and experience along. Tactics, Techniques, and Procedures (TTPs) are to describe how and why…

Artificial Intelligence · Computer Science 2023-08-24 Reza Fayyazi , Shanchieh Jay Yang

Cyber Threat Intelligence (CTI) reports document observations of cyber threats, synthesizing evidence about adversaries' actions and intent into actionable knowledge that informs detection, response, and defense planning. However, the…

Cryptography and Security · Computer Science 2026-03-04 Haokai Ma , Javier Yong , Yunshan Ma , Kuei Chen , Anis Yusof , Zhenkai Liang , Ee-Chien Chang

In recent years, the amount of Cyber Security data generated in the form of unstructured texts, for example, social media resources, blogs, articles, and so on has exceptionally increased. Named Entity Recognition (NER) is an initial step…

Computation and Language · Computer Science 2020-04-02 Simran K , Sriram S , Vinayakumar R , Soman KP

Information retrieval aims to find information that meets users' needs from the corpus. Different needs correspond to different IR tasks such as document retrieval, open-domain question answering, retrieval-based dialogue, etc., while they…

Information Retrieval · Computer Science 2023-12-19 Shicheng Xu , Liang Pang , Huawei Shen , Xueqi Cheng

Large language models (LLMs) can be used to analyze cyber threat intelligence (CTI) data from cybercrime forums, which contain extensive information and key discussions about emerging cyber threats. However, to date, the level of accuracy…

Proactive approaches to security, such as adversary emulation, leverage information about threat actors and their techniques (Cyber Threat Intelligence, CTI). However, most CTI still comes in unstructured forms (i.e., natural language),…

Cryptography and Security · Computer Science 2022-08-26 Vittorio Orbinato , Mariarosaria Barbaraci , Roberto Natella , Domenico Cotroneo
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