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Insider threats (InTs) within organizations are small in number but have a disproportionate ability to damage systems, information, and infrastructure. Existing InT research studies the problem from psychological, technical, and educational…

Cryptography and Security · Computer Science 2025-04-01 Haywood Gelman , John D. Hastings , David Kenley , Eleanor Loiacono

While most organizations continue to invest in traditional network defences, a formidable security challenge has been brewing within their own boundaries. Malicious insiders with privileged access in the guise of a trusted source have…

Cryptography and Security · Computer Science 2018-09-10 Anagi Gamachchi , Serdar Boztas

Intrusion detection systems perform post-compromise detection of security breaches whenever preventive measures such as firewalls do not avert an attack. However, these systems raise a vast number of alerts that must be analysed and triaged…

Cryptography and Security · Computer Science 2025-01-22 Herbert Maosa , Karim Ouazzane , Mohamed Chahine Ghanem

Insider threat detection (ITD) is challenging due to the subtle and concealed nature of malicious activities performed by trusted users. This paper proposes a post-hoc ITD framework that integrates explicit and implicit graph…

Artificial Intelligence · Computer Science 2025-12-23 Rahul Yumlembam , Biju Issac , Seibu Mary Jacob , Longzhi Yang , Deepa Krishnan

Most intrusion detection systems still identify attacks only after significant damage has occurred, detecting late-stage tactics rather than early indicators of compromise. This paper introduces a temporal analysis framework and taxonomy…

Cryptography and Security · Computer Science 2025-11-07 Tatiana S. Parlanti , Carlos A. Catania

An insider is defined as a team member who covertly deviates from the team's optimal collaborative control strategy in pursuit of a private objective, while maintaining an outward appearance of cooperation. Such insider threats can severely…

Optimization and Control · Mathematics 2025-12-04 Gehui Xu , Kaiwen Chen , Thomas Parisini , Andreas A. Malikopoulos

While most security projects have focused on fending off attacks coming from outside the organizational boundaries, a real threat has arisen from the people who are inside those perimeter protections. Insider threats have shown their power…

Cryptography and Security · Computer Science 2018-09-05 Anagi Gamachchi , Li Sun , Serdar Boztas

Insider attacks are one of the most challenging cybersecurity issues for companies, businesses and critical infrastructures. Despite the implemented perimeter defences, the risk of this kind of attack is still very high. In fact, the…

Cryptography and Security · Computer Science 2021-09-07 Efthimios Pantelidis , Gueltoum Bendiab , Stavros Shiaeles , Nicholas Kolokotronis

Temporal point process serves as an essential tool for modeling time-to-event data in continuous time space. Despite having massive amounts of event sequence data from various domains like social media, healthcare etc., real world…

Machine Learning · Computer Science 2022-10-04 Manisha Dubey , P. K. Srijith , Maunendra Sankar Desarkar

We analyze sets of intrusion detection records observed on the networks of several large, nonresidential organizations protected by a form of intrusion detection and prevention service. Our analyses reveal that the process of intrusion…

Cryptography and Security · Computer Science 2017-07-14 Richard Harang , Alexander Kott

Insider threats entail major security issues in geopolitics, cyber risk management and business organization. The game theoretic models proposed so far do not take into account some important factors such as the organisational culture and…

Cryptography and Security · Computer Science 2019-11-25 Chaitanya Joshi , David Rios Insua , Jesus Rios

The process through which an insider to an organization can be described or classified is lined within the orthodox paradigm of classification in which an organization considers only subject with requisite employee criterion as an insider…

Computers and Society · Computer Science 2017-06-20 Ikuesan Richard Adeyemi , Shukor Abd Razak , Mazleena Salleh

An insider is a team member who covertly deviates from the team's optimal collaborative strategy to pursue a private objective while still appearing cooperative. Such an insider may initially behave cooperatively but later switch to selfish…

Optimization and Control · Mathematics 2026-04-01 Gehui Xu , Kaiwen Chen , Zhong-Ping Jiang , Thomas Parisini , Andreas A. Malikopoulos

Insider threats is the most concerned cybersecurity problem which is poorly addressed by widely used security solutions. Despite the fact that there have been several scientific publications in this area, but from our innovative study…

Cryptography and Security · Computer Science 2022-12-13 Angad Pal Singh , Ankit Sharma

Insider Threat is a significant and potentially dangerous security issue in corporate settings. It is difficult to mitigate because, unlike external threats, insiders have knowledge of an organization's access policies, access hierarchy,…

Cryptography and Security · Computer Science 2023-06-01 Olusesi Balogun , Daniel Takabi

Lateral Movement refers to methods by which threat actors gain initial access to a network and then progressively move through said network collecting key data about assets until they reach the ultimate target of their attack. Lateral…

The Industrial Internet of Things drastically increases connectivity of devices in industrial applications. In addition to the benefits in efficiency, scalability and ease of use, this creates novel attack surfaces. Historically, industrial…

Machine Learning · Computer Science 2019-06-11 Simon Duque Anton , Lia Ahrens , Daniel Fraunholz , Hans Dieter Schotten

Insider threats are a growing concern for organizations due to the amount of damage that their members can inflict by combining their privileged access and domain knowledge. Nonetheless, the detection of such threats is challenging,…

Cryptography and Security · Computer Science 2022-11-29 Simon Bertrand , Nadia Tawbi , Josée Desharnais

In the era of the Internet of Things (IoT) and data sharing, users frequently upload their personal information to enterprise databases to enjoy enhanced service experiences provided by various online services. However, the widespread…

Cryptography and Security · Computer Science 2024-11-05 Zilin Huang , Xiangyan Tang , Hongyu Li , Xinyi Cao , Jieren Cheng

Recognizing instances at different scales simultaneously is a fundamental challenge in visual detection problems. While spatial multi-scale modeling has been well studied in object detection, how to effectively apply a multi-scale…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Da Zhang , Xiyang Dai , Yuan-Fang Wang