The Bitcoin Game #75: 2014 Interview with Dr. Jochen "Johoe" Hoenicke
Release Date: 02/28/2020
The Bitcoin Game
Tone Vays and Jimmy Song continue their series of interviews examining the current tensions between Bitcoin Knots and Bitcoin Core. Because Tone is only releasing this series as streaming video on X and YouTube, "The Bitcoin Game" podcast feed was revived to host this interview series for people who prefer a low-bandwidth audio podcast to consume this long-form content. This is Part 6 of the series, this time featuring Giacomo Zucco. The interview was recorded on November 13, 2025, in a side room at the Bitcoin Historico event in El Salvador.
info_outlineThe Bitcoin Game
Tone Vays and Jimmy Song continue their series of interviews examining the current tensions between Bitcoin Knots and Bitcoin Core. Because Tone is only releasing this series as streaming video on X and YouTube, "The Bitcoin Game" podcast feed was revived to host this interview series for people who prefer a low-bandwidth audio podcast to consume this long-form content. This is Part 5 of the series, this time featuring Knut Svanholm. The interview was recorded on November 12, 2025, in a side room at the Bitcoin Historico event in El Salvador. The beginning of the recording has been edited to...
info_outlineThe Bitcoin Game
Tone Vays and Jimmy Song continue their series of interviews examining the current tensions between Bitcoin Knots and Bitcoin Core. Because Tone is only releasing this series as streaming video on X and YouTube, "The Bitcoin Game" podcast feed was revived to host this interview series for people who prefer a low-bandwidth audio podcast to consume this long-form content. This is Part 4 of the series, featuring Bitcoin Core contributor Murch. The interview was recorded on November 7, 2025.
info_outlineThe Bitcoin Game
Tone Vays came out of retirement as a content creator to host a new series of interviews focusing on the current tensions between Bitcoin Knots and Bitcoin Core. Together with Jimmy Song, he is speaking with a wide range of well-known Bitcoiners on all sides of the debate to help users understand what is at stake. Since Tone didn't set up an audio RSS feed for this series, and a lot of people prefer a low-bandwidth podcast over streaming video on YouTube or X, I brought this podcast feed out of retirement to make the audio easily available. This is Part 3 of the series, featuring Bob Burnett...
info_outlineThe Bitcoin Game
Tone Vays came out of retirement as a content creator to host a new series of interviews focusing on the current tensions between Bitcoin Knots and Bitcoin Core. Together with Jimmy Song, he is speaking with a wide range of well-known Bitcoiners on all sides of the debate to help users understand what is at stake. Since Tone didn't set up an audio RSS feed for this series, and a lot of people prefer a low-bandwidth podcast over streaming video on YouTube or X, I brought this podcast feed out of retirement to make the audio easily available. This is Part 2 of the series, featuring Luke Dashjr...
info_outlineThe Bitcoin Game
Tone Vays came out of retirement as a content creator to host a new series of interviews focusing on the current tensions between Bitcoin Knots and Bitcoin Core. Together with Jimmy Song, he is speaking with a wide range of well-known Bitcoiners on all sides of the debate to help users understand what is at stake. Since Tone didn't set up an audio RSS feed for this series, and a lot of people prefer a low-bandwidth podcast over streaming video on YouTube or X, I brought this podcast feed out of retirement to make the audio easily available. This is Part 1 of the series, featuring Adam Back....
info_outlineThe Bitcoin Game
Welcome to episode 76 of The Bitcoin Game, sponsored by eToro. Andrew Tierney, otherwise known online as Cybergibbons, hacks everything from oil rigs to Cryptocurrency hardware wallets. We conducted this interview a bit before COVID-19 took over the planet, back when we were more worried about malware than going to the grocery store without an N95 mask. Andrew and I discuss hacking hardware wallets, IoT devices, home routers, his day job as a hacker for hire, and other stuff too.
info_outlineThe Bitcoin Game
Welcome to The Bitcoin Game, sponsored by eToro. I'm Rob Mitchell. One of my favorite old interviews is an exclusive with Dr. Jochen "Johoe" Hoenicke, the 2014 Bitcoin Hero. He rescued insecure Bitcoin from Blockchain.info wallets. A bit after this 2014 interview, Johoe responsibly published a side-channel attack on a TREZOR, which led to Satoshi Labs hiring him. Enjoy my first "rebroadcast" to celebrate 75, the only audio interview with Johoe that I'm aware of. Full show notes & links at TheBitcoinGame.com
info_outlineThe Bitcoin Game
Welcome to episode 74 of The Bitcoin Game, sponsored by eToro.
info_outlineThe Bitcoin Game
Tim Pastoor has been focused on peer-to-peer identity and reputation systems for the past five years, supporting Martti Malmi's work in the space (Martti was the first coder to work with Satoshi on Bitcoin). Twitter's Jack Dorsey recently got tons of attention promoting the goal of decentralized social media, and P2P identity may well be the base layer for such projects. Please check the full show notes with links at TheBitcoinGame.com.
info_outlineWelcome to episode 75 of The Bitcoin Game, sponsored by eToro. I'm Rob Mitchell.
I started podcasting in late 2014, and one of the greatest things to happen in those early episodes was landing an exclusive longform interview with Dr. Jochen "Johoe" Hoenicke, the 2014 Bitcoin Hero. Badass white hat Bitcoin hacker Johoe (at least that's what I call him) rescued insecure Bitcoin UTXOs from Blockchain.info wallets before they could be taken by less-scrupulous hackers. This was after his contributions to understanding the RNG issues with Android Bitcoin wallets in 2013. He also rescued insecure Bitcoin from one other platform, which he admits for the first time in this interview. Some months after this interview, Johoe responsibly published a side-channel attack on a TREZOR, which eventually led to Satoshi Labs hiring him as a TREZOR Cryptographer. Johoe's Bitcoin mempool stats site is yet another contribution he's made to the space.
This is the only audio (or video) interview with Johoe that I'm aware of, and it's worth a listen if you didn't catch it the first time. It's even educational, as Johoe explains concepts like how Bitcoin signatures work and what specifically went wrong with various wallets, in a way that's accessible for non-technical people like myself.
Hope you enjoy my first "rebroadcast" to celebrate 75!
EPISODE LINKS
Johoe first addresses repeating R value issue due to 2013 Android RNG bug
https://bitcointalk.org/index.php?topic=251743.msg2890179#msg2890179
Counterparty Bug first addressed by Johoe on BitcoinTalk.org
https://bitcointalk.org/index.php?topic=581411.msg6354731#msg6354731
Johoe discovers the recently compromised Blockchain.info addresses
https://bitcointalk.org/index.php?topic=581411.msg9774894#msg9774894
Blockchain.info Wallet
https://blockchain.info/wallet
Coinbase
https://www.coinbase.com
Counterparty Wallet
https://counterwallet.io
Johoe demonstrates TREZOR side channel attack (April 2015)
https://jochen-hoenicke.de/crypto/trezor-power-analysis
Satoshi Labs announces hiring Johoe as TREZOR Cryptographer
https://blog.trezor.io/ethical-hacker-and-bitcoin-hero-johoe-joins-satoshilabs-as-trezor-cryptographer-36c9a6b10d52
Johoe's Bitcoin Mempool Statistics site
https://jochen-hoenicke.de/queue/#0,all
THE BITCOIN GAME IS SPONSORED BY ETORO
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As Seen On
The Guardian • TechCrunch • Engadget • Ars Technica • Popular Mechanics
Infowars • Maxim • Inc. • Vice • RT • Bitcoin Magazine • VentureBeat
PRI • CoinDesk • Washington Post • Forbes • Fast Company
Bitcoin Keychains - BTCKeychain.com
CREDITS
All music in this episode was created by me, or is from a jam with me, Mike Coleman and Steve Lunn.
The Bitcoin Game box art was created from an illustration by Rock Barcellos.
Lightning Network tips:
https://tippin.me/@TheBTCGame
Bitcoin tipping address: 3AYvXZseExRn3Dum8z9tFUk9jtQK6KMU4g
Note: We migrated our RSS feed (and primary content host) to Libsyn; SoundCloud is just a legacy feed.
