Nikos Alexopoulos

Security researcher at AUEB, Greece
MSCA Fellow

[Nikos Alexopoulos @nikanta0]

These works fall into the larger context of efforts towards Secure, Private, User-Controlled Smart devices of my MSCA project SPUCS.

[Nikos Alexopoulos @nikanta0]

Together with @CoolSWEng and students from the Department of Management Science and Technology of AUEB we got two papers accepted in the Mobile and Smart Computing Track of ACM SAC 2026 to take place in Thessaloniki next March.

[Nikos Alexopoulos @nikanta0]

In the second paper, to be presented as a poster, with Ioannis Karyotakis, Foivos Proestakis, and Evangelos Talos, we compare security and privacy characteristics of the Android implementations of popular instant messaging applications using static and dynamic analysis tools.

[Nikos Alexopoulos @nikanta0]

To learn more about this "math", you can take a look at our 2022 USENIX Sec. paper:
https://t.co/LfXCNXRqfm

[Nikos Alexopoulos @nikanta0]

A very interesting post just landed on the Google Security Blog.

"Fighting against the math of vulnerability lifetimes has been a losing battle"

Google Online Security Blog:Eliminating Memory Safety Vulnerabilities at the Source https://t.co/kbPVMNRxRv

[Nikos Alexopoulos @nikanta0]

I'm very excited to announce that my MSCA Postdoctoral Fellowship proposal was accepted and I will be starting work on "SPUCS: Software Architectures for Secure, Private, User-controlled Smart Devices" in early 2024 with @CoolSWEng at @AUEB. More details to follow!

[Διομήδης Σπινέλλης @DSpinellis]

Προγραμματίζω επίβλεψη 1–2 υποψηφίων διδακτόρων στο χώρο της τεχνολογίας λογισμικού, ασφάλειας πληροφοριακών συστημάτων, ή υπολογιστικών συστημάτων με εστίαση στη χρήση μηχανικής μάθησης. Αν ενδιαφέρεστε ή γνωρίζετε κάποιον που ενδιαφέρεται, η φόρμα είναι: https://t.co/7VVUX5ocx9

[Nikos Alexopoulos @nikanta0]

Nice analysis of (cloud and on-premise) GPU utilization issues ($$) and potential solutions by George: https://t.co/80P8B4Wp49

[SPIN@TK @spin_TUDa]

It is time to celebrate. Twice! Congrats to @aidmar_wainakh @nikanta0 the latest SPIN doctors. Both defended their theses with great success last week. Now go out and use your license to apply science!

[Nikos Alexopoulos @nikanta0]

@jeffvanderstoep @Kuggofficial This is a very accurate statement indeed. I find it interesting to consider whether significant reduction of new bugs can be achieved without somehow "sacrificing" new functionalities...

[Nikos Alexopoulos @nikanta0]

@aidmar_wainakh @PET_Symposium @spin_TUDa @kerstingAIML Congrats! Awesome!

[Nikos Alexopoulos @nikanta0]

Oops it's @USENIXSecurity '22. Time flies by so fast :D

[Nikos Alexopoulos @nikanta0]

Excited to announce that our paper on measuring vulnerability lifetimes has been accepted at @USENIXSecurity '21. In this paper we seek to answer a fundamental question: How long do vulnerabilities live in the code?

Preprint: https://t.co/bYiIMcM49c

[Nikos Alexopoulos @nikanta0]

Today I will be presenting our paper "Who are Vulnerability Reporters? A Large-scale Empirical Study on FLOSS" at @ESEM_conf. Joint work with @andymeneely, Dorian Arnouts and Max Mühlhäuser. Open streaming on YT. Preprint available: https://t.co/uMKHgOctue #esem21

[Hardy @4Hardy_AoE]

secret @GL_Daut strats revealed at @redbullgaming Wololo 5!

[Nikos Alexopoulos @nikanta0]

@gannimo @Zoom It's kind of black magic but I got good stability since I found Zoom 5.6.7 on Debian 10+

[Randall Munroe @xkcd]

Recreate the Conditions https://t.co/lKevKtRa9a

[PHD Comics @PHDcomics]

The best thesis

[It's FOSS @Itsfoss]

Look who is back from cancellation! It's our good old RMS making a come back at Free Software Foundation 😎
https://t.co/GHmSPA1BuA