A new Microsoft technology will enable companies to prohibit devices such as the iPod from transferring data to and from PCs.

The technology that the company intends to offer with the new version of the Windows operating system, Longhorn, will mean that devices, such as the iPod, will not be able to be used to steal data.

Microsoft product manager Greg Sullivan told Australian IT: "Microsoft's goal is to have a system where people can use devices that help them in their work - such as a smart phone full of professional contacts - but not storage devices that could be used to quickly steal data."

The move follows concerns about the ability of devices such as the iPod to store large quantities of data. These concerns have already seen some companies ban the use of iPods, although reports that the MoD had done so were later denied.