69 citations · 318 across the 29 of their papers we have counts for
33 papers
Configuration, Not Conscience: A Large-Scale Empirical Study of LLM System Prompts
Constantinos Patsakis, Vasilios Argyropoulos, Efthymios Alepis
Leaked system prompts are often treated as windows into the hidden values of commercial language models, yet their composition is rarely studied at scale. We analyze a merged corpu…
Tales from the Git: Automating the detection of secrets on code and assessing developers' passwords choices
Nikolaos Lykousas, Constantinos Patsakis
Typical users are known to use and reuse weak passwords. Yet, as cybersecurity concerns continue to rise, understanding the password practices of software developers becomes increa…
What's inside a node? Malicious IPFS nodes under the magnifying glass
Christos Karapapas, George C. Polyzos, Constantinos Patsakis
InterPlanetary File System~(IPFS) is one of the most promising decentralized off-chain storage mechanisms, particularly relevant for blockchains, aiming to store the content foreve…
Man vs the machine: The Struggle for Effective Text Anonymisation in the Age of Large Language Models
Constantinos Patsakis, Nikolaos Lykousas
The collection and use of personal data are becoming more common in today's data-driven culture. While there are many advantages to this, including better decision-making and servi…
Hello Me, Meet the Real Me: Audio Deepfake Attacks on Voice Assistants
Domna Bilika, Nikoletta Michopoulou, Efthimios Alepis +1
The radical advances in telecommunications and computer science have enabled a myriad of applications and novel seamless interaction with computing interfaces. Voice Assistants (VA…
From NEA and NIA to NESAS and SCAS: Demystifying the 5G Security Ecosystem
Angelos Michalas, Constantinos Patsakis, Dimitrios D. Vergados +1
Despite the numerous pompous statements regarding 5G, it is indisputable that 5G creates a radical shift in telecommunications. The main reason is that 5G is an enabler of numerous…