Tag: scratch cards

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Airtel Scratch Card Analysis

One of my blog readers Johnson Kamotho sent me data of his Airtel scratch card collection and asked if I could perform a similar analysis to the Safaricom blog post.  I was up to the ask and  opted to apply a couple of techniques I’ve been trying out to reveal the underlying structure of data ...

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Breaking Safaricom Scratch Card Code

Almost two years ago, Safaricom Ltd extended the scratch card code from 12 digits to 16 in-order to increase the computational time required to break the code thereby making them more secure. However, system theory acknowledges that systems expose their weaknesses at points of change. I set to find out if the move to higher ...

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My Guinness World Record Attempt

Almost a year ago, I undertook an enormous task of collecting and analyzing Safaricom scratch cards. The ordeal saw me collect large amounts of Safaricom scratch cards that fitted in a box, then my thought ran “wow, these cards are too many I may as well enter them for Guinness World Record for the largest ...

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