After receiving a ”no records” response from the FBI in reply to a FOIA request I had submitted for FBI records pertaining to WikiLeaks, I had an appeal submitted to the Department of Justice's Office of Information Policy. Below is the DOJ's reply:
The DOJ states that there are no FBI WikiLeaks files and this means that the FBI has never targeted WikiLeaks as an organization.
I suspect that the FBI has filed WikiLeaks material away in the files of individuals such as Julian Assange, Bradley Manning, and other prominent WikiLeaks figures. By doing so, it keeps the material out of the hands of the general public and media because the FBI can invoke b(6), b(7) exemptions to Glomar (i.e. neither confirm, nor deny the existence) the material unless the individual submits a Privacy Act request, dies, or is convinced to sign a waiver and allow a third party to acquire material. In short, it might be 50 years before WikiLeaks material is available to the general public through FOIA or Mandatory Declassification Review requests.
I also think that lesser amounts of WikiLeaks material might be obtainable through FOIAing for information on attacks done by Anonymous on behalf of WikiLeaks.