Author Topic: credit card number explanation  (Read 4543 times)

0 Members and 1 Guest are viewing this topic.

Offline CrAz3D

  • Hero Member
  • *****
  • Posts: 10184
    • View Profile
credit card number explanation
« on: May 09, 2012, 09:56:02 am »
http://www.fark.com/cgi/go.pl?i=7095145&s=1

whoa. I figured it meant shit (just like a VIN does on a car). but seeing it all spelled out. I guess it's less complicated than a car's though? I dunno...thought it was cool so I posted.

Offline iago

  • Leader
  • Administrator
  • Hero Member
  • *****
  • Posts: 17914
  • Fnord.
    • View Profile
    • SkullSecurity
Re: credit card number explanation
« Reply #1 on: May 09, 2012, 10:20:51 am »
Two jobs ago, I actually wrote a program to parse out credit card numbers so we could do statistics on stolen credit cards we came across. Which bank is the most affected, which credit card company, which country, stuff like that. It was pretty neat. :)

Offline while1

  • x86
  • Hero Member
  • *****
  • Posts: 1013
    • View Profile
Re: credit card number explanation
« Reply #2 on: May 09, 2012, 12:35:03 pm »
I assumed it worked like this since some online retailers/ e-commerce systems don't require you to input the type of card it is (VISA, MC, etc.)... playing around with different inputs will at least get you the information about which type of card starts with what numbers, VISA being the easiest.
I tend to edit my topics and replies frequently.

http://www.operationsmile.org

Offline CrAz3D

  • Hero Member
  • *****
  • Posts: 10184
    • View Profile
Re: credit card number explanation
« Reply #3 on: May 09, 2012, 01:42:20 pm »
Two jobs ago, I actually wrote a program to parse out credit card numbers so we could do statistics on stolen credit cards we came across. Which bank is the most affected, which credit card company, which country, stuff like that. It was pretty neat. :)
and what did you find?

Offline iago

  • Leader
  • Administrator
  • Hero Member
  • *****
  • Posts: 17914
  • Fnord.
    • View Profile
    • SkullSecurity
Re: credit card number explanation
« Reply #4 on: May 09, 2012, 02:06:16 pm »
Two jobs ago, I actually wrote a program to parse out credit card numbers so we could do statistics on stolen credit cards we came across. Which bank is the most affected, which credit card company, which country, stuff like that. It was pretty neat. :)
and what did you find?
I don't remember. The results were in Symantec's ISTR (Internet Security Threat Report), though. I think the 2007 one.

Offline Newby

  • x86
  • Hero Member
  • *****
  • Posts: 10877
  • Thrash!
    • View Profile
Re: credit card number explanation
« Reply #5 on: May 09, 2012, 03:25:12 pm »
There's a bit of information here I guess.
- Newby
http://www.x86labs.org

Quote
[17:32:45] * xar sets mode: -oooooooooo algorithm ban chris cipher newby stdio TehUser tnarongi|away vursed warz
[17:32:54] * xar sets mode: +o newby
[17:32:58] <xar> new rule
[17:33:02] <xar> me and newby rule all

I'd bet that you're currently bloated like a water ballon on a hot summer's day.

That analogy doesn't even make sense.  Why would a water balloon be especially bloated on a hot summer's day? For your sake, I hope there wasn't too much logic testing on your LSAT.