VMware on Tuesday announced that a single 300 megabyte file was copied from there network.  The file was from the companies ESX server hyper visor source code.  The code was released online and it held out the possibility that more proprietary files could be leaked in the future.  The code was stolen from a Chinese company called China Electronics Import & Export Corporation (CEIEC) during the reported march security breach.  On the company’s blog Tuesday this information officially released VMware made an official statement “The fact that the source code may have been publicly shared does not necessarily mean that there is any increased risk to VMware customers.  The stolen code amounts to a single file from sometime around 2003 or 2004.”