Many businesses are realizing the need to have a fool-proof method for identifying users of their computer networks, to both protect their data and meet federal regulations such as HIPPA and SOX. BMC Software, for one, is trying to position itself as the go-to security vendor for adding identity-management features to Microsoft .Net environments. Oracle, meanwhile, says it’s on the lookout to partner with a vendor that that offers single sign-on software to add to its portfolio of identity management offerings, which are largely the result of an acquisition spree over the past few years.