Foivos Timotheos Proestakis

AUEB & NTUA

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Publication activitypapers/week, last 8 weeks

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Constitutional AI & AI Ethics (1)Red-Teaming & Adversarial Robustness (1)

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I. Karyotakis (1)Ioannis Karyotakis (1)Evangelos Talos (1)D. Spinellis (1)

Papers (1)

Mar 31, 2026

Mar 31, 2026·also TU Delft

An Empirical Comparison of Security and Privacy Characteristics of Android Messaging Apps

Despite using similar cryptographic protocols, popular messaging apps like Messenger and Telegram exhibit significantly larger attack surfaces and more aggressive network behavior than Signal, raising questions about their overall security and privacy posture.

I. Karyotakis, Ioannis Karyotakis, Foivos Timotheos Proestakis +4

Constitutional AI & AI Ethics Red-Teaming & Adversarial Robustness

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Foivos Timotheos Proestakis

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)