juraj
-
Biohacking – Paralelní Polis Hackers Congress 2015
My talk about biohacking from Paralelní Polis Hackers Congress 2015.
-
Ethereum and other altcoins
As you all probably know I am a fan of Bitcoin, but I am not that much of an alt-coin guy. What I mean by that is that I think that a…
-
Report from 30C3: There’s no privacy
Chaos Communication Congress is the oldest hacker conference in the world and the largest of its kind in Europe. It takes place at the end of each year in Hamburg and brings…
-
Hacking the Czech Parliament via SMS [30c3]
Hacking the Czech Parliament via SMS A parliamentary drama of 223 actors The Czech art collective Ztohoven’ project “Moral Reform” was accomplished in collaboration with web security experts. Together they created the…
-
Migrating from iPhone to Android 4.4 (Nexus 5) – the geeky review
For the past few years, I have been an iPhone user. At first I was jailbreaking, that got frustrating pretty soon, so I forgot about phone freedom, which for me means I…
-
Interview with me about Bitcoin and other virtual currencies
There was an interview with me on a Slovak web about money and I decided to translate it to English (and do a few minor edits). Enjoy! Is Bitcoin a pyramid scheme?…
-
Avoid news
If you have an intellectual minute, read Avoid news by Rolf Dobelli I highly agree. I have not watched TV for years now (we don’t have a subscription and I did not…
-
About Hacktivism: My TedX talk with English subtitles
This Tedx talk is about hacktivism in a modern world and it’s morality. It talks about Moral Reform, an artistic performance of Czech art group called Ztohoven. The setting: Czech Parliament. More…
-
OHM2013 – hackers are camping
The evocative video made by conference organizer tried to convince the audience that the hacker campgrounds are a Dutch tradition – as well as tulips, windmills, Gouda cheese and wooden shoes. Since…
-
Stuck Bitcoin transaction and play with double-spend
A few days ago I was sending my friend a payment of 1.2 BTC. My account had only slightly more than this amount available, not even enough for recommended transaction fee. Instead…