crypto exchanges

Scott Arciszewski's DEF CON 26 Crypto and Privacy Village talk critiquing the JOSE standards (JWT, JWS, JWE) and showing how to design cryptographic tokens more safely.

Joe Grand recounts being hired to hack a Trezor One hardware wallet and recover $2 million of cryptocurrency. He describes three months of experimentation, voltage glitching, failures and high-stakes attempts with only one chance to get it right.

A Real World Crypto 2017 talk by a Google engineer on using private set intersection to match ad views with in-store purchases. It describes privacy-preserving matching that avoids exposing personal transactions.

A Last Week Tonight segment on pig butchering scams, in which long-con romance and investment fraud is run, often by trafficked workers. It explains how victims are groomed and interviews people who lost large sums.

Barely Sociable presents a case that Bitcoin creator Satoshi Nakamoto is cryptographer Adam Back. It uses interview clips and circumstantial evidence, and also touches on the block size dispute.

WIRED has UCLA professor Amit Sahai explain zero-knowledge proofs to a child, a teen, a college student, a grad student and an expert. Each round goes deeper into the cryptography and why it matters.

Brian Warner, author of magic-wormhole, presents the tool at PyCon 2016. He explains how a few secret words let two computers securely transfer files, covering the cryptography (NaCl, SPAKE2) and library use.

A CNBC interview in which Deirdre Bosa talks with Tether's CTO and general counsel about the company's role in crypto and the future of stablecoins.

3Blue1Brown explains the math and mechanics behind Bitcoin visually: ledgers, digital signatures, proof of work and the blockchain, building up a decentralized payment system from first principles.

Kim Nilsson presents his investigation into how Mt. Gox was hacked and mismanaged, tracing the finances and the missing bitcoins. It was given at the 2017 Breaking Bitcoin meetup.

Coffeezilla gives a comprehensive history of Tether, the stablecoin issued by a company controlled by the owners of Bitfinex. He lays out accusations that it is not fully backed.

A documentary from Swan Bitcoin exploring Bitcoin's relationship with energy, featuring Lyn Alden and others, and arguing that mining is a net positive for the environment and not wasteful.

A step-by-step animated explanation of how SHA-256 works, from padding and message schedule to the compression function and final hash, with source code for the animations.

Rick Falkvinge responds to viewer feedback on his earlier Lightning Network video and raises a flaw he says was not previously discussed. The main thread is the network's unsolved routing problem.

Tiffany Fong's phone interview with Sam Bankman-Fried shortly after FTX filed for bankruptcy. He discusses the alleged backdoor, FTT collateral, political donations, and his legal position.

Ian Miers' Devcon4 talk on failures in on-chain privacy for Bitcoin and Ethereum. It covers attacks on transparent and decoy-based schemes, including how Monero-style privacy can be eroded over repeated transactions.

Benn Jordan investigates infrasound and low-frequency noise from data centers, including xAI's Colossus and a crypto mine, and reports his own experiments on the effects. The video covers the health and community impacts on nearby residents.

Moxie Marlinspike's DEF CON 18 talk argues that privacy threats have shifted from centralized state databases like TIA to corporate data collection by companies like Google, despite wins in strong cryptography and decentralization.

Dr Mike Pound of Computerphile shows how a modern laptop can crack Enigma, using a ciphertext-only attack based on an older paper. He compares it with the tooling in CrypTool.

Huygens Optics shows through a laser interference experiment that the question of a photon's size is really about coherence length. It argues that photons exist as energy exchanges between radiation and matter, not as little particles in free space.

A More Perfect Union report from a small Texas town next to a large Bitcoin mining facility, where residents describe constant noise and health problems. It looks at the political and corporate power behind the facility.