How to identify fake credit card numbers

[kranthi kumar]

Dear all, Today I would like to share about luhn algorithm also known as Module 10 which is useful in identifying fake sales/transactions reported or mentioned as made by credit card, debit card It is a simple checksum formula used to validate variety of Identification numbers such as credit card, debit card, IMIE numbers I request all of u type your credit card number firstly with valid number and secondly with invalid number in the attached sheet. I am here by attaching the excel sheet with in built formula, anybody who is interested to know the formulas can unhide the sheet. Best Regards, CA Kranthikumar kedari MCOM, FCA, DISA(ICAI) Partner, MANOHAR&VENKATA CHARTERED ACCOUNTANTS Cell:9493264564 Land line: 040-267612101

[RB ANAND]

Dear kranthi

 

How to validate if debit card number has more than 16 digits

 

Rgds

RB ANAND

[kranthi kumar]

Dear Anand we need to multiply all odd digits with 2 and even digits with 1 and if the sum is divisible with 10  then it is valid else invalid

Best Regards, CA Kranthikumar kedari MCOM, FCA, DISA(ICAI) Partner, MANOHAR&VENKATA CHARTERED ACCOUNTANTS Cell:9493264564 Land line: 040-267612101

--- On Mon, 1/28/13, RB ANAND <rba....@gmail.com> wrote:

--

[Haripriya Kasturi]

Very interesting. Thank you

---

From: kranthi kumar <kranthik...@yahoo.com>
To: prayas...@googlegroups.com
Sent: Wednesday, 30 January 2013 8:55 PM

--
You received this message because you are subscribed to the Google Groups "Prayas-ISAHYD" group.
To unsubscribe from this group and stop receiving emails from it, send an email to prayas-isahy...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.