23
Niro
7y

After working for this company for only a couple years, I was tasked with designing and implementing the entire system for credit card encryption and storage and token management. I got it done, got it working, spent all day Sunday updating our system and updating the encryption on our existing data, then released it.

It wasn't long into Monday before we started getting calls from our clients not being able to void or credit payments once they had processed. Looking through the logs, I found the problem was tokens were getting crossed between companies, resulting in the wrong companies getting the wrong tokens. I was terrified. Fortunately I had including safe guards tying each token to a specific company, so they were not able to process the wrong cards. We fixed it that night.

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  • 2
    How bad was the blaming after that? Sounds to me like a 'normal' dev story. Especially when you were the only one working on it, without review etc.
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