Here, for example, is an excerpt of a statement by eight former intelligence officials (including key whistleblowers) offering an alternatives view:
We have gone through the various claims about hacking. For us, it is child’s play to dismiss them. The email disclosures in question are the result of a leak, not a hack. Here’s the difference between leaking and hacking:We offer no answers but suggest that the media take it all a bit slower.
Leak: When someone physically takes data out of an organization and gives it to some other person or organization, as Edward Snowden and Chelsea Manning did.
Hack: When someone in a remote location electronically penetrates operating systems, firewalls or any other cyber-protection system and then extracts data.
All signs point to leaking, not hacking. If hacking were involved, the National Security Agency would know it – and know both sender and recipient.
In short, since leaking requires physically removing data – on a thumb drive, for example – the only way such data can be copied and removed, with no electronic trace of what has left the server, is via a physical storage device.