In relation to security, the customer's account info is truncated. The UK government has announced plans today, 9th November 2011to close the loophole that allows DVD's and CD's to be sent VAT-free from the Channel Islands. It is very common to find credit card fraud, especially over the internet. Point of fact, at the time of this writing about 80% of merchant accounts are handled by smaller ISOs.
If you want to check out more info in regards to
merchant atm look at http://gradrep.comp.nus.edu.sg/guide/?q=node/105005