Lucas123 writes "Computerworld has a story about the possibility and the potential ramifications of an IRS data loss similar to the UK's recent mishap. According to one World Bank executive, it could have already happened, 'and we don't know about it.' While the IRS does offer data encryption to its workers, more than half of its 94,000 employees have permission to take taxpayer information to locations outside the IRS offices. In the 2007 filing season, roughly 128 million individual tax returns were filed. In addition to the basic personal information on those forms, an IRS breach could also jeopardize the banking information of the 46% of filers who requested direct deposit refunds. This is not the first time that IRS security has been called into question, and the Department of Treasury's progress in that arena is dubious. [PDF]"