We might already be living through the first world cyberwar - it's just that we haven't acknowledged or named it yet. What might a timeline of that war look like? Well, 2007 seems like a good bet as a starting point - with a concerted series of cyber-attacks on Estonia. In 2008 there were events that a historian might weave into a narrative of a global cyberwar, when several underwater internet cables were cut during the course of the year, interrupting internet communication and particularly affecting the Middle East. In 2010 the Stuxnet worm was used to attack Iran's nuclear program. Another event from 2010, the WikiLeaks American embassy cables release ... would be irresistible for a historian to refer to in this context. One of the things that makes the first world cyberwar different from conventional warfare [is] the mix of nation states being involved with pressure groups, whistleblowers and hackers. Historians will be unable to ignore ... the 2016 US election campaign being influenced by alleged hacked and leaked emails. What reason is there to suppose that these events might eventually be grouped together as a single world cyberwar by historians? It is the idea that hostilities might formally come to an end. You can envisage a scenario where Russia, China and the US can see a mutual benefit in de-escalating cyber-attacks between the three of them.