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lecture · 14:48 · 3 checkpoints · browser voiceIntermediate

CrowdStrike: one file, 8.5 million blue screens

How a 78-minute configuration update, Channel File 291, crashed about 8.5 million Windows machines on 19 July 2024: a 21-field rule against a 20-input sensor in kernel code, a validator that trusted the wrong file, no staged rollout, and machines that couldn't stay up long enough to be fixed.

Read the case file: One File, 8.5 Million Blue Screens→

01 · Friday afternoon in Sydney

CASE-011 · One File, 8.5 Million Blue Screens

One file. 8.5 million blue screens.

Friday, 19 July 2024, Sydney

It's Friday the nineteenth of July, 2024, just after 2 in the afternoon in Sydney.

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0:00 / 14:48Friday afternoon in Sydney

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space play · ←/→ step · J/L 10 s · C captions · M music · F full screen · < > speed · S snip

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