Some may be aware of this and decide to format the entire computer before sending it off to the new owners. The problem with this approach is the same as deleting files: data recovery is a cinch with the right software. Some of them retail for $30 or less-as in free. So, the sensitive data that's supposed to be deleted can be recovered, if not easily, at least cheaply-perhaps by people with criminal interests.
Am I being paranoid? I don't think so. I've been tracking fraud for years now, and I can't help but conclude that the criminal underworld has plenty of people looking to be niche operators, not to mention that there are infinitesimal ways of defrauding people (look up "salad oil" and "American Express," for an example). An identification theft ring looking to collect sensitive information from bankrupt mortgage dealers wouldn't surprise me, especially in an environment where such companies are dropping left and right.
