What information/data in held on the magnetic strip of a credit card?
for my IT work i need to know exctaly what information if held on the magnetic strip on the back of a credit card, by this i mean the machine-readable information. I’ve googled the question a few times, put differently, to no avail, so any help would be greatly received! thanks Information on the Stripe There are three tracks on the magstripe. Each track is about one-tenth of an inch wide. The ISO/IEC standard 7811, which is used by banks, specifies: Track one is 210 bits per inch (bpi), and holds 79 6-bit plus parity bit read-only characters. Track two is 75 bpi, and holds 40 4-bit plus parity bit characters. Track three is 210 bpi, and holds 107 4-bit plus parity bit characters. Your credit card typically uses only tracks one and two. Track three is a read/write track (which includes an encrypted PIN, country code, currency units and amount authorized), but its usage is not standardized among banks. The information on track one is contained in two formats: A, which is reserved for pr
