Is the UK’s Trident nuclear program at risk from cyberattack?

In an interview with the Guardian this week, former British defence secretary Des Brown called on the British Prime Minister to hold an ‘end-to-end assessment’ of the Trident nuclear program’s cybersecurity, or risk potential weaknesses in the system.

Brown highlighted a report by the US department of defense which warned that the US and its allies “cannot be confident” about the security of their system in the event of a cyberattack by a well-resourced opponent.

Is the UK’s Trident nuclear program at risk from cyberattack?