«Konfidentsiaalse» tasemega riigisaladuseks on järgmine teave: ... Kaitsepolitseiameti ja Valitsusside telekommunikatsioonivõrgu erisideabonentide arvu ja koosseisu, samuti nende poolt kasutatavate telekommunikatsiooniteenuste arvu, liiki ning tehnilisi parameetreid puudutav teave.
In 1969, the US Department of Defense created ARPANet (Advanced Research Projects Agency) for research and collaboration in computer science. BBN (a company in Cambridge MA) constructed the network and AT&T provided special communications lines, because data connections over existing phone lines were too slow and not reliable enough.