I'm working on #infosec, in particular #internet #censorship and (network) covert channels. Private account.
Germany
Joined February 2009
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Internet Censorship’s Implications on Academic Research (cacm.acm.org/opinion/interne…). We wrote an article about a threat to academia. #censorship #humanrights #infosec #internetcensorship #cybersec #freedomofspeech #science #research #academia
A question just appeared during a talk at #ARES2026 session ARES06: Where to get DNS tunneling recordings of real-world malware? We have published exactly such recordings during last year's ARES: github.com/dreamingdust/doma… #steganography #tunneling #covertchannels @ARES_Conference
BBased on an analysis of twenty countries, Lenz et al. observed a sliding shift in censorship behavior based on the degree of authoritarianism.
Paper: researchgate.net/publication…
#censorship #internetcensorship #internet #freedomofspeech #freespeech #cybersecurity #freedom
A high-level categorization of #internet #censorship systems taken from sciencedirect.com/science/ar… on the basis of different previous taxonomies, see paper for details. #censorship #censorshipcircumvention #taxonomies #infosec #cybersec #netsec #wardens #steganography
#Internet #Censorship: Platforms and #Datasets
#infosec #netsec
Source: our survey paper sciencedirect.com/science/ar…
What is covert channel amplification? I wrote a short blog post about it: wendzel.de/misc/2026/02/28/h…
#covertchannels #networksecurity #netsec #cybersec #cybersecurity #informationhiding #infosec #covertchannel #security #steganography
AdullamoT: Using IoT Devices as Relays for Time-decoupled Secret Exchange & Censorship Circumvention (IH&MMSec'26) -- wendzel.de/dr.org/files/Pape…
#censorship #circumvention #freedomofspeech #iot #steganography #covertchannels
AMPhitryon: Efficient small data compression
for low-bandwidth covert channels wendzel.de/dr.org/files/Pape… #compression #steganography #covertchannels
New paper on #Internet #Censorship now available: Digital Control: National Tactics of Internet Censorship (EICC'26)
doi.org/10.1007/978-3-032-28…
It's behind paywall but you can visit fvv.um.si/eicc2026/, click on "landing page" and then access the proceedings for free.
Our new IFIP SEC paper on covert channels and amplification is already available: doi.org/10.1007/978-3-032-27… #infosec #covertchannels #steganography #ifipsec
The final version of our survey on #Internet #Censorship is now available (published in Computers & Security).
This is joint-work with Simon Volpert, Sebastian Zillien, Julia Lenz, Philip Rünz, and @lucacav.
sciencedirect.com/science/ar…
#CfP 10th European Interdisciplinary Cybersecurity Conference (EICC'26) will be held in Darmstadt. Deadline: Jan-18 (AoE), fvv.um.si/eicc2026/ #cybersecurity #infosec #netsec
How does Internet Censorship work and how can we measure it? We surveyed existing methodology in a paper published in Comp. & Sec. I am very grateful for the joint work with my co-authors.
sciencedirect.com/science/ar… #censorship #internetcensorship #FreedomOfSpeech #InfoSec #netsec
DNS Malware Detection, Identification, and Behavior Detection: link.springer.com/chapter/10… #malware #infosec #Cybersecurity #cybersec #dns #steganography
Steffen Wendzel retweeted
9️⃣ years after the original installment, Kathy Rain 2: Soothsayer has FINALLY LAUNCHED! 🚀🎉
Private eye Kathy Rain will embark on her most dangerous case yet — the pursuit of the notorious serial killer known as the Soothsayer 🔪🩸🔎
Enjoy the release trailer below! 👇
Steffen Wendzel retweeted
🚨 CUT CONTENT FOUND!
This entire room was cut from The Secret of Monkey Island but the art & code survived in the source files
Using the original dev tools, it was fully restored by @GamesHistoryOrd including dripping leg & smoke!
Pure adventure game archaeology
#MonkeyMonday
I created a brief video on #taxonomies (and our #steganography #taxonomy in particular).
youtube.com/watch?v=7MiMI5eU…
Related work:
- ieeexplore.ieee.org/document…
- dl.acm.org/doi/10.1145/37291…
Identifying Overlapping Ideas and Concepts of Methods that Hide Information growkudos.com/publications/1… #cybersecurity #cybersec #taxonomy #survey #steganography #covertchannels #informationhiding #systematization #infosec #netsec
A Generic Taxonomy for #Steganography. Published today by ACM Comp. Surv. Joint-work w/ @wmazurczyk, @lucacaviglione, A. Mileva, J. Dittmann, C. Krätzer, K. Lamshöft, C. Vielhauer, L. Hartmann, J. Keller, T. Neubert and S. Zillien dl.acm.org/doi/10.1145/37291…
