The government conducted a test of the UK's broadband and comms networks in November, it has emerged.
A Digital Britain implementation update published in December said that the test was a drill to rehearse responses in the event of the UK telephone network coming under attack, or otherwise failing.
"On 11 and 12 November, the Government successfully carried out a major test of the UK’s ability to manage and recover from a major loss of network capacity," said the update. "The test centred on the loss of the Public Switched Telephone Network."
A spokesperson for the Department of Business, Innovation and Skills (BIS) told ZDNet UK on Friday that the operation had been codenamed White Noise, but declined to provide any further details.