DEF CON 29/Blockchain Village across years
Paris and Bally's Hotels, Las Vegas · 5-8 August 2021 · 11 talks
Blockchain Village focuses on cryptocurrency security, smart contract auditing, DeFi flash loan exploits, hardware wallet reverse engineering, MEV sandwich attacks, and consensus defense.
1–11 of 11 talks
Blockchain Village·38 min
Shinchul Park · Seungjoo Kim
Korea University researchers Shinchul Park and Seungjoo Kim explore using blockchain consensus as a collaborative framework for multi-stakeholder threat modeling.
Blockchain Village·14 min
Reddcoin · TechAdept
Reddcoin and TechAdept introduce the DEF CON 29 Blockchain Village CTF, featuring cryptographic challenges, consensus exploits, and smart contract puzzles.
Blockchain Village·25 min
Peter Kacherginsky
Coinbase principal researcher Peter Kacherginsky presents COSTA, an automated threat analyzer tracking exchange hacks, cross-chain DeFi bugs, and NFT scams.
Blockchain Village·45 min
Michael Lewellen
OpenZeppelin security architect Michael Lewellen reviews major smart contract hacks and demonstrates automated incident response using Defender.
Blockchain Village·39 min
Anto Joseph
Anto Joseph demystifies flash loans in Decentralized Finance (DeFi), analyzing how uncollateralized loans enable multi-million dollar price oracle manipulation attacks.
Blockchain Village·1 hr 5 min
Gokul Alex · Tejaswa Rastogi
Gokul Alex and Tejaswa Rastogi dissect Maximal Extractable Value (MEV) sandwich attacks on decentralized exchanges, presenting defensive anti-frontrunning protocols.
Blockchain Village·1 hr 3 min
Colin Cantrell
Colin Cantrell presents an alternative cryptographic and architectural approach to solving the blockchain trilemma of scalability, decentralization, and security.
Blockchain Village·40 min
Josh McIntyre
Josh McIntyre reviews subtle attack vectors that result in permanent cryptocurrency loss, covering clipboard hijackers, phishing dApps, and user operational errors.
Blockchain Village·46 min
Yaz Khoury
Yaz Khoury examines 51% hashpower attacks on Proof-of-Work blockchains, analyzing chain reorganization defenses and checkpointing mechanisms.
Blockchain Village·50 min
Dabao Wong
Dabao Wong reveals the systemic security risks of 'unlimited token approvals' in ERC-20 smart contracts, showing how vulnerable DApps lead to total wallet drains.
Blockchain Village·45 min
Byeongcheol Yoo
Byeongcheol Yoo evaluates hardware cryptocurrency wallets, analyzing whether Secure Elements (SE) effectively defend private keys against physical attacks.
