An official from the Department of Home Affairs has been selected to lead the Australian Cyber Security Centre to replace Alastair MacGibbon who quit the post two weeks before the Federal Election in May.

The head of the Australian Cyber Security Centre, Alastair MacGibbon, has handed in his resignation a fortnight before the nation goes to the polls.

The Federal Government is yet to properly define in its encryption bill what a systemic weakness means, and the question came up more than once for discussion during the second hearing on the bill before the Parliamentary Joint Committee on Security and Intelligence.