Dev Team Rebuilds AI App Backend in 48 Hours After API Key Theft by Bots

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The team behind AI mentor KODA suffered an overnight credential breach after their API key was left exposed in frontend JavaScript code, allowing bots to drain their credits. Within 48 hours, they migrated the key to a Cloudflare Worker, a serverless proxy that keeps the key hidden from the browser and adds automatic AI model fallback. Chat history was also moved from browser-local storage to a Supabase cloud database, meaning user conversations now sync across devices and sessions. Row Level Security was implemented at the database level to ensure users can only access their own chat data. The team also automated a referral and ambassador program using database triggers, all built and deployed from a budget Android smartphone.

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