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August 01 2012

WATCH_DOGS: A game about information warfare, technology and interconnected data

I would like to share these two videos with you. Even if you are not playing games on a regular base or self-identify as gamer, please take a closer look. They are about an upcoming Ubisoft game, centered around the player’s ability to hack into the city’s infrastructre network to control surveillance cameras, trains, traffic [...]

April 01 2011


I did a lightning talk about comodogate on April 1st at Metalab. Slides are already online (I’ll update them with more information (for stand alone value) this weekend). Also I will extend this blog post this week, so if you were at the talk and arelooking for follow up information please stay tuned.

February 25 2011

Telecommunication data retention visualisation

Directive 2006/24/EC of the European Parliament and of the Council of 15 March 2006 on the retention of data generated or processed in connection with the provision of publicly available electronic communications services or of public communications networks and amending Directive 2002/58/EC This is full name of the directive [0], which requires all EU-members to collect [...]

January 13 2011

Banditvis v0.1

I just finished the first version of Banditvis! Although there is no guide yet, installation should be rather straight-forward. I’m looking forward to the first users trying it out and giving me feedback. If you have any trouble with installation, don’t hesitate to contact me! Currently these steps have been implemented, making the pipeline complete: [...]

January 05 2011

Wikileaks #3

Epic fail, Thomas -_- www2:~# ls -haxl /home/wikileaks/- total 36K drwxr-xr-x 4 wikileaks wikileaks 4.0K 2011-01-06 00:40 . drwxr-xr-x 4 root      root      4.0K 2010-12-18 02:13 .. -rw——- 1 wikileaks wikileaks   48 2010-12-18 02:27 .bash_history -rw-r–r– 1 wikileaks wikileaks  220 2008-05-12 21:02 .bash_logout -rw-r–r– 1 wikileaks wikileaks 3.1K 2008-05-12 21:02 .bashrc -rw-r–r– 1 wikileaks wikileaks  541 [...]

December 18 2010

Wikileaks #2

I’ve upgraded from DNS to hosting. Some might say this is dangerous… maybe it is. This is what I think: I believe in freedom of speech and freedom of press. Free distribution of press releases is as important as writing them. Nobody seems to care about wikileaks, only about obscure swedish rape laws and vengeful [...]

December 16 2010

New Project: Banditvis

A few days ago I was really bored and had no better idea than starting a new github project [1]. I started coding a tool that lets you visualise the origins of attacks that were or are currently blocked by fail2ban. This will include: Bitmap, Heatmaps, … A static version that generates a .png for [...]

December 04 2010


Similar to 2600 [1] I am also going to provide DNS for wikileaks at: wikileaks.thomas-steinbrenner.net And I urge you to do the same… P.S.: Also look at this [2]… Funny timing isn’t it? And this: [3] P.P.S.: The Interpol arrest warrant has been removed with the arrest of Julian Assange. — [1] wikileaks.2600.com [2] http://www.interpol.int/public/data/wanted/notices/data/2010/86/2010_52486.asp [...]

November 02 2010

Confidential and verifiable voting

During my national service we had to donate blood. After the blood was collected you got the bag of blood together with two barcode stickers. One sticker said “yes”, the other said “no” (as in “donate” and “discard”). You would remove the human readable part of the stickers and use the sticker you wanted before [...]

October 14 2010

Latest trend: Panacoustics

Now we all (should) know about the panoptic[1] idea and that we live in an postpanoptic[2] world (a world in which surveillance is detached from space and time, not relying on cell blocks and guard towers). But now, with a new technology, employing an array of over 300 microphones and a domecamera, it is also [...]

September 26 2010

Diaspora: nomen est omen?

Diaspora is the idea of an decentralized and secure open source software alternative to Facebook. From my limited knowledge of the UNIX/FLOSS/hackerspace/… milieu I knew that there was going to be somebody who thought she could do better with a flick of the wrist. And from a technical point-of-view this could also work. It would [...]

September 16 2010

Know your SSL Certificates!

Anecdotal evidence suggests that Mozilla Firefox is one of the most secure browsers, protecting you from a lot of different threats. But one thing it does not do is monitoring SSL Certificate Fingerprints… Consider the following two scenarios: Somebody forges a SSL certificate (as demonstrated at 25C3) An abusive Root-CA is approved [1] In both [...]
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