Utilizing bloom filters for detecting flooding attacks against SIP based services. - Dimitris Geneiatakis; Nikos Vrakas; Costas Lambrinoudakis (Comput. Secur., 2009)

Privacy Requirements Engineering for Trustworthy e-Government Services. - Nikos Vrakas; Christos Kalloniatis; Aggeliki Tsohou; Costas Lambrinoudakis (TRUST, 2010)

A Call Conference Room Interception Attack and Its Detection. - Nikos Vrakas; Dimitris Geneiatakis; Costas Lambrinoudakis (TrustBus, 2010)

IS IP Multimedia Subsystem Affected by ‘Malformed Message' Attacks? - An Evaluation of OpenIMS. - Nikos Vrakas; Dimitris Geneiatakis; Costas Lambrinoudakis (SECRYPT, 2011)

A Cross Layer Spoofing Detection Mechanism for Multimedia Communication Services. - Nikos Vrakas; Costas Lambrinoudakis (Int. J. Inf. Technol. Syst. Approach, 2011)

It's All in the Cloud: Reviewing Cloud Security. - Nikolaos Pitropakis; Eleni Darra; Nikos Vrakas; Costas Lambrinoudakis (UIC/ATC, 2013)

Evaluating the Security and Privacy Protection Level of IP Multimedia Subsystem Environments. - Nikos Vrakas; Dimitris Geneiatakis; Costas Lambrinoudakis (IEEE Commun. Surv. Tutorials, 2013)

An intrusion detection and prevention system for IMS and VoIP services. - Nikos Vrakas; Costas Lambrinoudakis (Int. J. Inf. Sec., 2013)

Enhancing security and privacy in VoIP/IMS environments - Nikos Vrakas (2013)

Obscuring users' identity in VoIP/IMS environments. - Nikos Vrakas; Dimitris Geneiatakis; Costas Lambrinoudakis (Comput. Secur., 2014)

Vertical Industries Requirements Analysis & Targeted KPIs for Advanced 5G Trials. - Tilemachos Doukoglou; Velissarios G. Gezerlis; Konstantinos Trichias; Nikos Kostopoulos; Nikos Vrakas; Marios Bougioukos; Rodolphe Legouable (EuCNC, 2019)