This guy has analysed a database of plain text passwords to infer peoples behaviour in selecting a 4-digit PIN. Excellent narrative and presentation, IMHO.
Actually I think the results are far more relevant for voicemail PIN selection than for ATM cards - there doesn't seem to be any limit on the number of guesses you get with voicemail.
PIN number analysis
I marked up the heat map he generated. The grid makes it easier to pick off certain values, like spotting your own PIN.
Also managed to script something to extract the base results from that image into a csv file and hence to a spreadsheet. Hopefully I will be off the bench by next week so will have less time for this stuff!
Actually I think the results are far more relevant for voicemail PIN selection than for ATM cards - there doesn't seem to be any limit on the number of guesses you get with voicemail.
PIN number analysis
I marked up the heat map he generated. The grid makes it easier to pick off certain values, like spotting your own PIN.
Also managed to script something to extract the base results from that image into a csv file and hence to a spreadsheet. Hopefully I will be off the bench by next week so will have less time for this stuff!
Comment