The framework · one of five quadrants
Q3 · EngineeredEngineered
Tightly coupled systems where one small fault cascades and takes down the whole machine.
The parts are individually sound and the couplings are not. A single fault propagates faster than anyone can interrupt it, and the size of the failure has almost nothing to do with the size of the fault that started it.
How to spot it. Look at what cannot be switched off independently. That is where the cascade will run.
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26Events in this quadrant
Every event filed in Q3 Engineered
- Iberian Peninsula blackout2025Cascading generator trips blacked out Spain and Portugal for hours.
- Heathrow substation fire2025A single substation fire shut Europe's busiest airport for a day.
- Baltimore Key Bridge collapse2024A ship blackout hit an unprotected pier and dropped the bridge.
- CrowdStrike outage2024One faulty security update bricked 8.5M Windows machines worldwide.
- Baltic Sea cable cuts2024Ships dragging anchors severed telecom and power cables between states.
- Red Sea cable cuts2024A sinking ship's dragging anchor cut Asia-Europe internet cables.
- Change Healthcare ransomware2024One server without MFA froze billing for half of US healthcare.
- East Palestine derailment2023One overheated bearing derailed a hazmat train and forced a toxic burn.
- MOVEit mass-exploit2023One file-transfer zero-day breached 2,700+ organisations at once.
- Southwest holiday meltdown2022A storm exposed legacy crew software; 16,900 flights cancelled.
- Toyota supplier hack2022Ransomware on one parts supplier halted all 14 Toyota Japan plants.
- Suez Canal blockage2021One ship wedged sideways choked 12% of world trade for six days.
- AWS US-EAST-1 outage2021A routine scaling action hit a latent bug and took down half the internet.
- Colonial Pipeline shutdown2021One leaked password shut the pipeline carrying 45% of East Coast fuel.
- Meta global outage2021One backbone command erased Facebook from the internet worldwide.
- Boeing 737 MAX MCAS crashes2018A single sensor could push the nose down. The pilots were never told the system existed.
- Equifax breach2017One unpatched server exposed half of America. The password was admin.
- NotPetya (Maersk)2017A Ukrainian tax update froze a fifth of world shipping. One server in Ghana had lost power and survived.
- WannaCry ransomware attack2017The fix shipped in March. In May the worm took 150 countries, on the machines nobody patched.
- Samsung Galaxy Note 7 recall2016They recalled 2.5 million phones and swapped the batteries. The replacements caught fire too.
- Knight Capital2012Dead code from 2003 woke on the one server they forgot to update, then traded for 45 minutes.
- Fukushima Daiichi nuclear disaster2011Blamed on the wave. The backup generators sat in the basement, below a seawall long known to be too low.
- Deepwater Horizon2010The failsafe was a blowout preventer. It buckled the very pipe it was built to shear.
- Air France Flight 4472009Three iced sensors handed the jet back to the crew, who held the nose up all the way down.
- Mattel lead-paint toy recall2007Mattel audited its Chinese factories. Nobody audited the paint supplier four tiers down.
- Tenerife collision1977The deadliest crash in aviation history happened on the ground.
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