Cyber-network
From Tardis Wiki, the free Doctor Who reference
The Cyber network was the network that linked every Cyberman to one another. It contained their database and was used transfer files wirelessly. (TV: Rise of the Cybermen/The Age of Steel) It could also receive information from infostamps, giving Cybermen a means of exchanging information when their wireless systems were inactive. (TV: The Next Doctor)
To defeat the reviving ship of Cybermen that crashed in Klimtenburg, the Eleventh Doctor cut off a partially-converted Victor Ernhardt from the Cyber-network. Victor's Cyber body was then charged with with excess power from a lightning stike so when he was reconnected to the network, the other Cybermen overloaded and died. (PROSE: Plague of the Cybermen)
