This is an overview of public presentations on various security topics I have given.
I enjoy talking about security. Did I tell you that my father, my mother, my sisters and my wife are all teachers? If you want me to speak at your conference, or just submit to your call for papers, just contact me.
Panel on stalkerwareAs part of NNEDV’s Virtual Technology Summit, August 2020.
Malspam is Different SpamDelivered at Botconf in Bordeaux, France. (Slides)
Mitigation! Mitigation! Mitigation!
Delivered at AfricaHackOn in Nairobi, Kenya.
Delivered at BSides Athens in Athens, Greece.
Phishing: Malicious Actors Moving to Quality over Quantity
Delivered at Duo Security in Ann Arbor, MI, USA.
The State of Malware from the Eye of the Tiger
All your Bayes are belong to us: lessons learned from fighting spam
Delivered at IRISSCON 2018 in Dublin, Ireland
Getting ahead of the elliptic curve
Delivered at NorthSec 2018 in Montreal, Canada on 17 May.
Don’t Know Much About Security
Delivered as a discussion at ENISA in Athens Greece (22 February) and later as a talk at an OWASP meeting, also in Athens Greece (26 April). Slides of the latter talk are available as pdf.
Poodles drown no more
Delivered at BSides Athens on 25 June.
The Good News on Cryptography
How Broken is our Crypto Really?
Elliptic Curve Cryptography for those who are afraid of mathematics
A very basic introduction into ECC at BSides San Francisco. In San Francisco.
Elliptic Curve Cryptography for those who are afraid of maths
A very basic introduction into ECC at BSides London. In London.
The State of Email in 2015
Presentation on email, spam, IPv6, PGP and encryption during TROOPERS15 in Heidelberg, Germany.
The Many Faces of Mevade
Presentation together with João Gouveia (Anubisnetworks) on the Mevade/Sefnit botnet, during Botconf ’14 in Nancy, France.
Dual_EC_DRBG; or, the story of a not so random backdoor
A talk on the backdoor in the Dual_EC_DRBG pseudo-random number generator, for the Greek OWASP chapter. Slides.
Being a spammer for 40 minutes
Presentation on the state of spam co-organized by the Greek chapters of ISACA and OWASP in April 2013.
My PC has 32,539 errors: how telephone support scams really work
How to test properly: comparative web filter tests
0800-MALWARE: support scam phone calls
Presentation on tech support scams during APWG‘s eCrime sync-up in Dublin, Ireland in March 2012.
Evaluating filters with the uncertainty of Heisenberg breathing down your neck
Presentation on measuring spam filters’ performance during APWG‘s eCrime sync-up in Dublin, Ireland in March 2011.