PACTF_2018: Credit Card Leak

Category: Lovelace Points: 35 Description:

ShoeShop was hacked, and all of their customer records were released online—including credit card numbers. One credit card in the leak is invalid, however. What is the invalid credit card number? Here’s the leak: cc_leak.txt


Simple challenge, easily solved via Python.

# ./ 

Therefore, the flag is 8692015931457397.

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