How a Failed Payment on a Train Platform Earned Me $400
一个普通人在忘记支付信用卡账单后,通过一个故障的支付应用发现了漏洞,并由此开启了他的漏洞赏金之旅。这个故事展示了如何将日常烦恼转化为发现安全漏洞的机会,并培养一种黑客思维。 2025-9-9 06:36:59 Author: infosecwriteups.com(查看原文) 阅读量:4 收藏

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This isn’t another bug bounty story meant to make your eyes sparkle with massive payouts. This is the story of how a normal, boring evening, a forgotten bill and a glitchy app launched my bug bounty journey. And more importantly, it’s about how you can start seeing the world with a hacker’s mindset, too.

A Perfect example of how a normal, frustrating experience turns into a bug hunter’s aha! moment.

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Photo by Gilley Aguilar on Unsplash

It all started around 8 PM on a noisy train platform. The train was late and I was just scrolling on my phone when that sinking feeling hit me — I forgot to pay my credit card bill.

I quickly pulled up a popular payment app I used — let’s call it PayApp — to handle the transaction. I went through the steps, entered the amount and hit “Pay”. A loading spinner appeared, then a message flashed on the screen:

“Payment Failed.”

Great, then another message pops saying:

“Bank server is down again.”

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Photo by Andy Vult on Unsplash

Annoying, but it happens. I was about to put my phone back in my pocket when a notification from my bank popped up:


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