differential privacy

minutephysics, in collaboration with the US Census Bureau, explains differential privacy and why the 2020 census adds noise to protect individuals' data. It walks through how statistics can leak private information.

A 1937 GM-produced film explaining how the automobile differential lets wheels turn at different speeds around a corner. It uses clear animations and cutaway demonstrations to build the idea from first principles.

Rick Hartley's AltiumLive keynote on differential pairs in PC boards. He argues the rules from cables and twisted pairs do not carry over, and covers which pair geometry gives the best impedance control, the right spacing, routing practice and how much skew is acceptable.

A 1930s Chevrolet training film explaining the principles and development of the differential gear. It builds the idea step by step from first principles to the finished mechanism.

A short clip of Steve Jobs at the 2010 D8 conference, interviewed by Walt Mossberg, defining privacy as people knowing what they are signing up for, in plain English and repeatedly. The discussion centered on location data.

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.

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.

A one-minute CNBC clip in which Google CEO Eric Schmidt says that if you have something you do not want anyone to know, perhaps you should not be doing it. The remark became a notorious line in privacy debates.

A Johns Hopkins Foreign Affairs Symposium debate between former NSA and CIA director Michael Hayden and constitutional law professor David Cole, moderated by Major Garrett. They argue over NSA surveillance, its constitutionality and the balance between privacy and security.

The Hated One argues that Apple tracks users and shares their data despite its privacy marketing, pointing to Apple's own privacy policy. It is a critical take on Apple as a corporation rather than a friend of privacy.

Moxie Marlinspike's DEF CON 18 talk on changing threats to privacy argues that surveillance arrived through convenient services and network effects, so opting out is not a real solution. It also includes his framing of getting social democracy rather than the fascism people feared.

A one-minute clip of Steve Jobs in 2010 saying companies should ask users before tracking them, and that people's personal data is like their diary.

A satirical Onion news segment announcing a Google feature that lets users opt out of Google's data collection by moving to a remote village without Google products or sunlight.

Aral Balkan's re:publica 2015 talk argues that people are the product of surveillance-based business models. It makes an ethical case against data monopolies and for privacy as a human right.

Neil Fraser of Google presents Differential Synchronization, the algorithm behind MobWrite, for keeping multiple copies of a document in sync in real time. The talk argues the approach is robust, convergent and efficient.

Destin of Smarter Every Day goes behind the scenes at the 23andMe lab to show how genotyping works. He also discusses DNA testing and privacy.

A 2018 VICE News Tonight interview with Apple CEO Tim Cook, in which he discusses privacy as a core company value, the Facebook breach, and Apple's iCloud arrangement in China.

John Oliver's Last Week Tonight segment explains how data brokers collect and sell personal information, including a stunt in which his team bought data to identify members of Congress.

Eben Moglen speaks at NYU in 2010 about freedom in the cloud, arguing that centralized services and handing over personal data and server logs erode privacy and freedom. The talk lays out the motivation for FreedomBox, a personal server for your own data.

Eben Moglen's re:publica 2012 talk argues that media which spy on and data-mine the public threaten freedom of thought, and that free technology and free culture are needed to protect it.

A 2018 tutorial explaining uBlock Origin's advanced user mode, including how to block scripts and use the dynamic filtering settings. It positions the extension as a replacement for tools like uMatrix.

A Belgian bank-safety campaign video in which a supposed clairvoyant stuns people by revealing personal financial details, then shows he found them all online. It warns viewers to be careful about what they share and about online banking security.

A short video claiming that the chat app PiperChat violated COPPA, the US children's online privacy law, because it had no parental consent form. It says this led to a very large fine. It appears to be a clip from the TV show Silicon Valley.

A 2018 Facebook UK ad, part of the 'Here Together' campaign, promising to do more to keep users safe and protect their privacy after the Cambridge Analytica scandal.

A 1953 US Navy training film on the basic mechanisms in fire control computers: shafts, gears, cams and differentials. It shows how these mechanical parts compute ship and target firing solutions.

A 2016 House Judiciary Committee hearing on encryption, held during the Apple and FBI iPhone dispute. It features testimony from Apple, the FBI and outside experts including Susan Landau, and runs over five hours.

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.

Veritasium explains how investigators caught the Golden State Killer using forensic genealogy, matching crime scene DNA to distant relatives in public genealogy databases. It also covers the privacy implications of DNA databases.

Eben Moglen's 2011 Personal Democracy Forum talk on the loss of anonymity and privacy on the internet. He proposes building an alternative net of personal servers, the idea behind FreedomBox.

A 'leaked' Microsoft video shown at its 2011 MGX conference that mocks Google's Gmail and Apps to promote Office 365. It attacks Google over email scanning and privacy.

A short video illustrating the hazard of pressure differentials (delta P) in commercial diving, where a pressure difference creates enormous force on a diver. It is a safety-oriented look at diving accidents.

A long Techlore video documenting what it presents as hostile conduct by GrapheneOS leadership and community members, including lead developer Daniel Micay, toward CalyxOS and others.

A Nathan For You sketch in which Nathan Fielder tackles customers' privacy fears at computer repair shops with an awkwardly absurd business solution. It is a comedy clip from the Comedy Central show.

Dan Geer's Black Hat 2014 keynote argues that cybersecurity is a matter of power and policy rather than wishful thinking. He covers surveillance, the vulnerability market, software liability and privacy as the capacity to misrepresent yourself.

John Oliver interviews Edward Snowden about NSA surveillance, including street interviews showing people have not thought about what the government can see. The segment famously frames the issue through private photos.

Part 2 of a Q&A workshop with security researcher Jacob Appelbaum from April 2012, covering mobile phone security, cellphone forensics, state repression and surveillance. Topics include booting Tails from USB and surveillance self-defense resources.

The first of an eight-part ScienceClic series building general relativity, covering worldlines, proper time and coordinate systems with animated visualizations.

VICE News reporter Elle Reeve investigates China's rollout of facial recognition and mass surveillance technology and what it means for citizens. The report originally aired on VICE on HBO.

Matt Gray and Tom Scott review how viewers worked out where they watched the 2017 solar eclipse from, based on clues in their video. They go through the methods people used and how accurate the guesses were.

A short satirical Onion News Network segment presenting Facebook as a CIA project. It plays on surveillance and data-collection fears.