Archived report. This report was archived in 2005 and has not been updated. Computer fraud is a major impediment to the expansion of e-commerce. Not only does it represent a financial loss to the victims, but it acts as a deterrent to people using on-line commerce. Fraud can take many forms, from simply using a stolen card, copying cards while out of sight of its owner, or ‘skimming’ information from cards as they are inserted into ATMs. This report describes the various forms of fraud, and systems being introduced to combat it.