All Outputs (12)

Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics (2024)
Presentation / Conference Contribution
Kenny, M., Pitropakis, N., Sayeed, S., Chrysoulas, C., & Mylonas, A. (2024, June). Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics. Presented at 39th IFIP International Conference, SEC 2024, Edinburgh

Malicious insiders often pose a danger to information security systems, which can be a crucial challenge to tackle. Existing technological solutions attempt to identify potential threats via their anomalous system interactions, however, fully fail to... Read More about Malicious Insider Threat Detection Using Sentiment Analysis of Social Media Topics.

Transforming EU Governance: The Digital Integration Through EBSI and GLASS (2024)
Presentation / Conference Contribution
Kasimatis, D., Buchanan, W. J., Abubakar, M., Lo, O., Chrysoulas, C., Pitropakis, N., Papadopoulos, P., Sayeed, S., & Sel, M. (2024, June). Transforming EU Governance: The Digital Integration Through EBSI and GLASS. Presented at 39th IFIP International Conference, Edinburgh, UK

Traditionally, government systems managed citizen identities through disconnected data systems, using simple identifiers and paper-based processes, limiting digital trust and requiring citizens to request identity verification documents. The digital... Read More about Transforming EU Governance: The Digital Integration Through EBSI and GLASS.

TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework (2023)
Presentation / Conference Contribution
Sayeed, S., Pitropakis, N., Buchanan, W. J., Markakis, E., Papatsaroucha, D., & Politis, I. (2023, August). TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework. Presented at 18th International Conference on Availability, Reliability and Security, Benevento, Italy

Digital transformation is a method where new technologies replace the old to meet essential organisational requirements and enhance the end-user experience. Technological transformation often improvises the manner in which a facility or resources are... Read More about TRUSTEE: Towards the creation of secure, trustworthy and privacy-preserving framework.

Towards The Creation Of The Future Fish Farm (2023)
Journal Article
Papadopoulos, P., Buchanan, W. J., Sayeed, S., & Pitropakis, N. (2023). Towards The Creation Of The Future Fish Farm. Journal of Surveillance, Security and Safety, 4, 1-3. https://doi.org/10.20517/jsss.2022.16

Aim: A fish farm is an area where fish raise and bred for food. Fish farm environments support the care and management of seafood within a controlled environment. Over the past few decades, there has been a remarkable increase in the calorie intake o... Read More about Towards The Creation Of The Future Fish Farm.

Post Quantum Cryptography Analysis of TLS Tunneling on a Constrained Device (2022)
Presentation / Conference Contribution
Barton, J., Pitropakis, N., Buchanan, W., Sayeed, S., & Abramson, W. (2022, February). Post Quantum Cryptography Analysis of TLS Tunneling on a Constrained Device. Presented at 8th International Conference on Information Systems Security and Privacy, Online

Advances in quantum computing make Shor’s algorithm for factorising numbers ever more tractable. This threatens the security of any cryptographic system which often relies on the difficulty of factorisation. It also threatens methods based on discret... Read More about Post Quantum Cryptography Analysis of TLS Tunneling on a Constrained Device.

GLASS: A Citizen-Centric Distributed Data-Sharing Model within an e-Governance Architecture (2022)
Journal Article
Lo, O., Buchanan, W., Sayeed, S., Papadopoulos, P., Pitropakis, N., & Chrysoulas, C. (2022). GLASS: A Citizen-Centric Distributed Data-Sharing Model within an e-Governance Architecture. Sensors, 22(6), Article 2291. https://doi.org/10.3390/s22062291

E-governance is a process that aims to enhance a government’s ability to simplify all the processes that may involve government, citizens, businesses, and so on. The rapid evolution of digital technologies has often created the necessity for the esta... Read More about GLASS: A Citizen-Centric Distributed Data-Sharing Model within an e-Governance Architecture.

PAN-DOMAIN: Privacy-preserving Sharing and Auditing of Infection Identifier Matching (2022)
Presentation / Conference Contribution
Abramson, W., Buchanan, W. J., Sayeed, S., Pitropakis, N., & Lo, O. (2021, December). PAN-DOMAIN: Privacy-preserving Sharing and Auditing of Infection Identifier Matching. Presented at 14th International Conference on Security of Information and Networks, Edinburgh [Online]

The spread of COVID-19 has highlighted the need for a robust contact tracing infrastructure that enables infected individuals to have their contacts traced, and followed up with a test. The key entities involved within a contact tracing infrastructur... Read More about PAN-DOMAIN: Privacy-preserving Sharing and Auditing of Infection Identifier Matching.

Proof of Adjourn (PoAj): A Novel Approach to Mitigate Blockchain Attacks (2020)
Journal Article
Sayeed, S., & Marco-Gisbert, H. (2020). Proof of Adjourn (PoAj): A Novel Approach to Mitigate Blockchain Attacks. Applied Sciences, 10(18), Article 6607. https://doi.org/10.3390/app10186607

The blockchain is a distributed ledger technology that is growing in importance since inception. Besides cryptocurrencies, it has also crossed its boundary inspiring various organizations, enterprises, or business establishments to adopt this technol... Read More about Proof of Adjourn (PoAj): A Novel Approach to Mitigate Blockchain Attacks.

Smart Contract: Attacks and Protections (2020)
Journal Article
Sayeed, S., Marco-Gisbert, H., & Caira, T. (2020). Smart Contract: Attacks and Protections. IEEE Access, 8, 24416-24427. https://doi.org/10.1109/access.2020.2970495

Smart contracts are programs that reside within decentralized blockchains and are executed pursuant to triggered instructions. A smart contract acts in a similar way to a traditional agreement but negates the necessity for the involvement of a third... Read More about Smart Contract: Attacks and Protections.

Control-Flow Integrity: Attacks and Protections (2019)
Journal Article
Sayeed, S., Marco-Gisbert, H., Ripoll, I., & Birch, M. (2019). Control-Flow Integrity: Attacks and Protections. Applied Sciences, 9(20), Article 4229. https://doi.org/10.3390/app9204229

Despite the intense efforts to prevent programmers from writing code with memory errors, memory corruption vulnerabilities are still a major security threat. Consequently, control-flow integrity has received significant attention in the research comm... Read More about Control-Flow Integrity: Attacks and Protections.

DNS-IdM: A Blockchain Identity Management System to Secure Personal Data Sharing in a Network (2019)
Journal Article
Alsayed Kassem, J., Sayeed, S., Marco-Gisbert, H., Pervez, Z., & Dahal, K. (2019). DNS-IdM: A Blockchain Identity Management System to Secure Personal Data Sharing in a Network. Applied Sciences, 9(15), Article 2953. https://doi.org/10.3390/app9152953

Identity management (IdM) is a method used to determine user identities. The centralized aspect of IdM introduces a serious concern with the growing value of personal information, as well as with the General Data Protection Regulation (GDPR). The pro... Read More about DNS-IdM: A Blockchain Identity Management System to Secure Personal Data Sharing in a Network.

On the Effectiveness of Control-Flow Integrity Against Modern Attack Techniques (2019)
Presentation / Conference Contribution
Sayeed, S., & Marco-Gisbert, H. (2019, June). On the Effectiveness of Control-Flow Integrity Against Modern Attack Techniques. Presented at 34th IFIP TC 11 International Conference, SEC 2019, Lisbon, Portugal

Memory error vulnerabilities are still widely exploited by attackers despite the various protections developed. Attackers have adopted new strategies to successfully exploit well-known memory errors bypassing mature protection techniques such us the... Read More about On the Effectiveness of Control-Flow Integrity Against Modern Attack Techniques.