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0:00 The Free Software Foundation

5:03 Why is Linux so popular?

9:57 The XZ Weakness

12:07 End To End Encryption - SSH

18:40 How To Compress Data

23:47 How The .XZ Hack Worked

34:24 A Bug In Jia’s Code

38:27 Henry Hacks Derek

43:16 The Back Door Is Exposed

47:16 Who is Jia Tan?

50:33 Open Vs Closed Source

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A huge thank you to everyone who made this possible:

Rich Jones for his openness throughout this project.

Denzel Farmer for his incredible breakdown.

Karsten Nohl @hackingmatters, Yannis Hofmann, and Matthias Marx at SRLabs for their help throughout this project.

Fabian Fäßler @LiveOverflow Alex Schlögl and the rest of the Cure53 team for their technical insights on the project.

Tom Scott, and Computerphile for their excellent videos on compression.

Josh at Breakfast Serial for the filming inspiration.

Planet Money for a podcast that helped inform our research and Fern, the youtube channel, for inspiration.

Thomas Roccia for his technical feedback on the video.

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References: https://ve42.co/XZHackRefs

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Special thanks to our Patreon supporters: Adam Foreman, Albert Wenger, Alex Porter, Alexander Tamas, Anton Ragin, armedtoe, Balkrishna Heroor, Bertrand Serlet, Blake Byers, Bruce, Charles Ian Norman Venn, Daniel Martins, Data Don, Dave Kircher, David Johnston, David Tseng, EJ Alexandra, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, Hayden Christensen, Hong Thai Le, Ibby Hadeed, Jeromy Johnson, Jesse Brandsoy, Jon Jamison, Juan Benet, Kelcey Steele, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Mark Heising, Martin Paull, Meekay, meg noah, Michael Krugman, Moebiusol - Cristian, Orlando Bassotto, Parsee Health, Paul Peijzel, Richard Sundvall, Robson, Sam Lutfi, Shalva Bukia, Sinan Taifour, Tj Steyn, Ubiquity Ventures, Vahe Andonians, wolfee

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Writer, Director & Producer: Henry van Dyck

Presenters: Derek Muller & Henry van Dyck

Editor: Trenton Oliver

Animators: Fabio Albertelli, Domonkos Józsa, Andrew Neet, Alex Drakoulis & Emma Wright

Illustrators: Jakub Misiek & Nataly Zhuk

Researchers: Aakash Singh Bagga & Sophia Rose

Additional Editing: James Stuart & Peter Nelson

Thumbnail Designers: Abdallah Rabah, Ren Hurley, Ben Powell & Henry van Dyck

Production Team: Josh Pitt, Matthew Cavanagh, Anna Milkovic, Katy Southwood & Jess Bishop-Laggett

Executive Producers: Derek Muller & Casper Mebius

Additional video/photos supplied by Getty Images & Storyblocks

Music from Epidemic Sound