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Digital transformation with the adoption of cloud technologies, outsourcing, and working-from-home possibilities permits flexibility for organizations and persons. At the same time, it makes it more difficult to secure the IT infrastructure…

Cryptography and Security · Computer Science 2024-07-25 Daniela Pöhn , Wolfgang Hommel

Zero-Trust Network Access (ZTNA) marks a significant shift in network security by adopting a "never trust, always verify" approach. This work provides an in-depth analysis of ZTNA, offering a comprehensive framework for understanding its…

Cryptography and Security · Computer Science 2024-10-29 Vasilios Mavroudis

Insider threats are a particularly tricky cybersecurity issue, especially in zero-trust architectures (ZTA) where implicit trust is removed. Although the rule of thumb is never trust, always verify, attackers can still use legitimate…

Cryptography and Security · Computer Science 2026-01-13 Gaurav Sarraf

Internet of Things (IoT) devices pose significant security challenges due to their heterogeneity (i.e., hardware and software) and vulnerability to extensive attack surfaces. Today's conventional perimeter-based systems use credential-based…

Cryptography and Security · Computer Science 2023-11-29 Cem Bicer , Ilir Murturi , Praveen Kumar Donta , Schahram Dustdar

Small-Medium Businesses (SMBs) are essential to global economies yet remain highly vulnerable to cyberattacks due to limited budgets, inadequate cybersecurity expertise, and underestimation of cyber risks. Their increasing reliance on…

Cryptography and Security · Computer Science 2026-01-13 Ahmed M. Abdelmagid , Barry C. Ezell , Michael McShane

The computing continuum introduces new challenges for access control due to its dynamic, distributed, and heterogeneous nature. In this paper, we propose a Zero-Trust (ZT) access control solution that leverages decentralized identification…

The growing adoption of IoT and cloud computing, combined with rapid advancements in digital technologies, has considerably increased the cyber-attack surface, resulting in increasingly complex and persistent attacks. Traditional security…

Cryptography and Security · Computer Science 2026-04-28 Muhammad Umair Basharat , Jawad Hussain , Waqas Khalid , Chiew Foong Kwong

The accelerating deployment of artificial intelligence systems across regulated sectors has exposed critical fragmentation in risk assessment methodologies. A significant "language barrier" currently separates technical security teams, who…

Cryptography and Security · Computer Science 2025-12-01 Hernan Huwyler

Digital identities are increasingly important for mediating not only digital but also physical service transactions. Managing such identities through centralized providers can cause both availability and privacy concerns: single points of…

Cryptography and Security · Computer Science 2025-08-15 René Mayrhofer , Michael Roland , Tobias Höller , Philipp Hofer , Mario Lins

The proliferation of autonomous AI agents represents a paradigmatic shift from traditional web architectures toward collaborative intelligent systems requiring sophisticated mechanisms for discovery, authentication, capability verification,…

Networking and Internet Architecture · Computer Science 2025-08-06 Sichao Wang , Ramesh Raskar , Mahesh Lambe , Pradyumna Chari , Rekha Singhal , Shailja Gupta , Rajesh Ranjan , Ken Huang

The proliferation of Internet services has led to an increasing need to protect private data. User authentication serves as a crucial mechanism to ensure data security. Although robust authentication forms the cornerstone of remote service…

Cryptography and Security · Computer Science 2024-12-18 Hamidreza Fereidouni , Abdelhakim Senhaji Hafid , Dimitrios Makrakis , Yaser Baseri

Advanced Persistent Threats (APTs) are sophisticated multi-step attacks, planned and executed by skilled adversaries targeting modern government and enterprise networks. Intrusion Detection Systems (IDSs) and User and Entity Behavior…

Cryptography and Security · Computer Science 2021-01-08 Hazem M. Soliman , Geoff Salmon , Dušan Sovilj , Mohan Rao

The microservice bombshells that have been linked with the microservice expansion have altered the application architectures, offered agility and scalability in terms of complexity in security trade-offs. Feeble legacy-based perimeter-based…

Cryptography and Security · Computer Science 2025-11-10 Rethish Nair Rajendran , Sathish Krishna Anumula , Dileep Kumar Rai , Sachin Agrawal

Identity management refers to the technology and policies for the identification, authentication, and authorization of users in computer networks. Identity management is therefore fundamental to today's IT ecosystem. At the same time,…

Cryptography and Security · Computer Science 2023-01-03 Daniela Pöhn und Wolfgang Hommel

To securely control access to systems, the concept of Zero Trust has been proposed. Access Control based on Zero Trust concept removes implicit trust and instead focuses on evaluating trustworthiness at every access request by using…

Cryptography and Security · Computer Science 2022-09-23 Koudai Hatakeyama , Daisuke Kotani , Yasuo Okabe

This paper presents a comprehensive analysis of the shift from the traditional perimeter model of security to the Zero Trust (ZT) framework, emphasizing the key points in the transition and the practical application of ZT. It outlines the…

Cryptography and Security · Computer Science 2024-01-19 Abraham Itzhak Weinberg , Kelly Cohen

Cyber Threat Intelligence (CTI) is critical for mitigating threats to organizations, governments, and institutions, yet the necessary data are often dispersed across diverse formats. AI-driven solutions for CTI Information Extraction (IE)…

Cryptography and Security · Computer Science 2025-01-14 Olga Sorokoletova , Emanuele Antonioni , Giordano Colò

This study introduces an innovative approach to automating Cyber Threat Intelligence (CTI) processes in industrial environments by leveraging Microsoft's AI-powered security technologies. Historically, CTI has heavily relied on manual…

Cryptography and Security · Computer Science 2024-10-29 Shrit Shah , Fatemeh Khoda Parast

Zero-Touch Networks (ZTNs) represent a state-of-the-art paradigm shift towards fully automated and intelligent network management, enabling the automation and intelligence required to manage the complexity, scale, and dynamic nature of…

Cryptography and Security · Computer Science 2025-03-03 Li Yang , Mirna El Rajab , Abdallah Shami , Sami Muhaidat

Micro-segmentation is an emerging security technique that separates physical networks into isolated logical micro-segments (workloads). By tying fine-grained security policies to individual workloads, it limits the attacker's ability to…

Networking and Internet Architecture · Computer Science 2023-06-01 Nardine Basta , Muhammad Ikram , Mohamed Ali Kaafar , Andy Walker