BBVA's Simple shutdown locked customers out of their accounts on day one
BBVA shut the beloved app-only bank Simple and botched the migration: logins failed, call centers overwhelmed, no timeline to fix it.
事例を読むmistake.clubCASESTUDIES.CHAT のアーカイブ
失敗から学ぶ。
できれば、他人の失敗から。
事業の失敗、大きな代償を払った意思決定、そこから得られる教訓。
全アーカイブはアプリで記事は英語と簡体字中国語で提供しています。以下のタイトルと本文は公開時の言語のままです。
公開済みの事例
2,000 公開済みの事例 · 随時更新Mercato left a cloud bucket open, spilling 70,000 orders — and stayed quiet
The grocery startup's unprotected storage bucket exposed years of orders; it fixed the leak and raised a $26M Series A without telling customers.
事例を読むInfo Edge wrote off Bijnis months after 4B — its first net loss in six years
The Indian internet group wrote off its entire $9.3M bet on Bijnis, citing cash burn and buyback liabilities, after writing off 4B Networks.
事例を読むESPN Plus's UFC 257 stream blacked out for paying fans before the main event
Subscribers who paid $69.99 on top of $59.99 a year missed parts of UFC 257's early main card; ESPN Plus apologized and offered partial refunds.
事例を読むEndo pulled cellulite treatment Qwo, laid off 90 and booked a $235–250M charge
Nine months after its 'Butt First' campaign, Endo killed Qwo over bruising side effects — 90 jobs gone, $50–60M annual savings, a quarter-billion charge.
事例を読むEmbracer's $2 billion Saudi deal collapsed — and its acquisition spree stopped dead
The Swedish group's buyout machine ran on a promised $2 billion from Savvy; when the Saudi-backed partner walked in May 2023, the studios paid for it.
事例を読むEight Sleep's cloud-only Pod3 became a $2,000 'sauna' during the AWS outage
When AWS's US-EAST-1 region failed on October 20, 2025, Eight Sleep's Pod3 covers lost temperature control, tracking and automations — no offline mode existed.
事例を読むCitizen suspended CZ Smart smartwatch sales after reviewers documented the bugs
The Wear OS watch with IBM Watson and NASA tech shipped laggy, inaccurate and short-lived; Citizen pulled touchscreen models off sale in August.
事例を読むWondermind investors sue, alleging a promised app and bank partnerships never existed
Five investors say the celebrity-founded mental-health startup, pitched at $95M, never built its app or landed its partnerships; the claims are unproven.
事例を読むWaterstones' warehouse software upgrade left book orders waiting up to six weeks
A July 2022 switch to Blue Yonder warehouse software created an order backlog for the UK's biggest book chain, stranding new titles and customer orders.
事例を読むUber took a Zomato stake for exiting India, lost $707M on it in six months, then sold
Uber's 2020 sale of Uber Eats India to Zomato left it holding shares that fell $707M in value in H1 2022, and it moved to sell the whole stake.
事例を読むPost Holdings' SPAC found no deal in two years and was unwound at a ~$10M loss
Post Holdings Partnering Corp, formed in May 2021 at the SPAC peak, missed its 28 May 2023 deadline and returned its cash to shareholders.
事例を読むA Philips Hue Bridge Pro firmware update bricked hubs; Signify offered free replacements
A June 2026 firmware update left some Hue Bridge Pro hubs stuck on a red light; Signify said fewer than 100 were hit and promised free replacements.
事例を読むMission Produce's new ERP left it blind to avocado inventory and added $4.1M of costs
A new ERP system cost Mission Produce visibility of on-hand fruit, so it sold at below-average returns and sourced extra product with little margin.
事例を読むL'Oréal China's Singles' Day mask deal was undercut by its own coupons; streamers paused
Shoppers who bought a L'Oréal mask in Li Jiaqi's live stream found it cheaper via coupons in L'Oréal's own streams; two top streamers suspended work with it.
事例を読むJapan-backed JS Foundry filed for bankruptcy 2.5 years after launch with ¥16.1B debt
JS Foundry, set up in December 2022 to run a former Sanyo and Onsemi power-chip plant, filed for bankruptcy after sales fell from ¥10B to ¥2.6B.
事例を読むJ&J Snack Foods' new ERP system cost an estimated $20M in quarterly revenue
J&J Snack Foods' ERP changeover, timed for its slowest quarter, still disrupted picking, scheduling and production, hitting revenue and margins.
事例を読むIndian Overseas Bank's new net banking failed for a week; it went back to the old system
IOB moved to an Infosys-subsidiary platform on 24 July 2025, saw nearly a week of disruption and told customers it was going back to the old system.
事例を読むBelfast's George Best hotel never opened; room investors put in nearly £6M and lost out
Belfast's George Best hotel went into administration in 2020 unopened; a judge allowed its sale, leaving bedroom investors unlikely to recoup anything.
事例を読むBungie's Destiny 2 patch deleted player progress and forced a 20-hour outage and rollback
A routine January 2023 Destiny 2 patch deleted some players' triumphs, seals and catalysts, so Bungie took the game offline and rolled servers back.
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