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Bad.Technology

The newspaper of record for things that went very wrong.

167 fails indexed
17 categories
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// ON THIS MONTH IN TECH HISTORY

Latest fails

30 of 167
Aerospace Historical

Mars Pathfinder: Priority Inversion Bug Keeps Crashing the Rover Computer — Diagnosed from 180 Million Kilometres Away, Fixed by Remote Patch

In July 1997, NASA's Mars Pathfinder landed successfully and deployed the Sojourner rover — the first wheeled vehicle on another planet. Within days, the spacecraft's computer began resetting itself unpredictably, sometimes several times a day. Mission controllers could see the…

Infrastructure

Southwest Airlines Cancels 16,700 Flights Over Ten Days Because Its Crew Scheduling Software Cannot Handle a Snowstorm

When Winter Storm Elliott hit the United States on 21 December 2022, every major US airline recovered in 24 to 48 hours. Southwest Airlines kept cancelling flights for ten days. By 31 December, the airline had scrapped 16,700 departures — roughly two-thirds of its entire…

Infrastructure Historical

Mariner 1: A Missing Symbol in Guidance Code Destroys the Rocket Four Minutes After Launch

On 22 July 1962, NASA's Mariner 1 Venus probe was destroyed by range safety officers 4 minutes and 53 seconds after launch when its Atlas-Agena rocket veered off course toward inhabited areas. The cause was a transcription error in the ground-based guidance software: a single…

Startup

iQiyi Accused of Fabricating Revenue and User Counts, Stock Drops 40%

iQiyi, the Baidu-backed Chinese video streaming platform known as the 'Netflix of China', listed on Nasdaq in 2018 at a $13.8B valuation. In April 2020, short-seller Wolfpack Research alleged iQiyi had inflated its revenue by 27–44% and user counts by 42–60% between 2018 and…

Finance Major Historical

Black Monday: Portfolio Insurance Algorithms Cascade and Wipe $500 Billion in One Day

On 19 October 1987, global stock markets crashed simultaneously. The Dow Jones Industrial Average fell 22.6% in a single session — the largest single-day percentage drop in its history — wiping approximately $500 billion from US equities in one day. The primary accelerant was…

Product Historical

Beauvais Cathedral: Medieval Engineers Build the Highest Gothic Vault Ever — It Collapses Twice

Construction of the Gothic choir at Beauvais Cathedral began in 1225 with a vault height of 48.5 metres — the highest ever attempted. In November 1284, twelve years after completion, the choir vault collapsed. Rebuilt with additional piers, it partially collapsed again in 1573…

Startup Historical

Rdio Music Streaming Service Shuts Down, Losing to Spotify on Growth and Licensing

Rdio, once regarded as having the best music streaming interface, filed for bankruptcy in November 2015 and shut down. It sold assets to Pandora for $75 million. Despite critical acclaim for its design and user experience, Rdio was outpaced by Spotify's growth and Pandora's US…

Privacy Major Historical

Facebook Allows Cambridge Analytica to Harvest 87 Million Profiles Without User Consent

Cambridge Analytica acquired detailed psychological profiles on 87 million Facebook users via a quiz app that exploited Facebook's Graph API to harvest friend data without their consent. The data was used in targeted political advertising for Brexit and the 2016 US presidential…

AI Historical

Google Photos Labels Black Users as Gorillas — Fix: Remove Gorillas from Labels

Google Photos' image recognition system classified photos of Black individuals as "gorillas." Google's temporary fix was to suppress the label entirely, and in 2018 it was revealed that gorillas, chimps, and related animals remained uncategorised in Google Photos — a suppression…

Security Major Historical

NotPetya Wiper Disguised as Ransomware Causes $10 Billion in Global Damage

NotPetya, a destructive wiper disguised as ransomware, spread via a trojanised Ukrainian accounting software update and EternalBlue. It destroyed systems at Maersk (shipping), Merck (pharma), FedEx, and hundreds of other companies. With no real decryption mechanism, victims…

Automobile Major

Tesla Recalls 2 Million Vehicles After NHTSA Finds Autopilot Oversight Failures

The US National Highway Traffic Safety Administration forced Tesla to recall approximately 2 million vehicles in December 2023 following a two-year investigation into crashes involving the Autopilot driver assistance system. The investigation found that Autopilot's driver…