In lockdown, he made somewhat futile attempts to pass the time, copying the full text of the Bible (it took one year, nine months and two days), and pacing for 18 hours a day.

CNN: No kid should be in solitary confinement

However, Microsoft acknowledged that group calls using more than two computers did pass through its servers which were used to "aggregate the media streams", and that text-based messages were also stored on its computers for up to 30 days in order to make sure they were synchronised across users' various devices.

BBC: Skype graphic