Stripe is secure. Your integration isn't.
Error 1: Secret key in frontend
The sk_live_* key should NEVER appear in client-side JavaScript.
Error 2: Client-only subscription verification
If subscription check is frontend-only, users can bypass the paywall.
Error 3: Webhooks without signature verification
Anyone can forge a "payment_succeeded" event.
Error 4: Client-side manipulable price
Users can modify the checkout amount.
Error 5: No rate limiting on free trials
Unlimited account creation for infinite free trials.
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Sources
Editorial analysis based on official vendor, project, and regulator documentation.
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