I know very little about POS logging as I have never actually seen it done and most people who post information about it later claim that they haven't actually tried it and are going off information they gained from a 3rd party.
The basic idea of a skimmer is that it is a small plastic device that is placed over the card reader on an ATM. This device contains a mag stripe reader. When you insert your card into the ATM the magnetic stripe of the card passes through the skimmer on its way to the atm mouth and your skimmer copies and stores the track data from the card. Later on you can remove your skimmer and write the track data on to a blank card and pow. You have a copy of somebodies debit or credit card and they don't even know it.
To get the pin number you either use a hidden camera mounted near the ATM with a clean view of the PIN pad or you place a false pin pad over top of the real one so you can store their pin digitally. Some more advanced skimmers have GSM connectivity so you can text yourself the track data and pin number to yourself live.
supposedly people can also place bugs in POS terminals and skim the debit track data and pin that way however I have not seen this done.
it IS however possible to plase a small recording device on the phone line that the POS machine is hooked in to and record the track data from credit cards that way however i'm not entirely sure how to decrypt the sound data and convert it into a workable track. I suppose you could also do this with debit cards and just eyeball the pin number as they type it in.  |