It isn't. Lost my laptop about 2 months ago and got really pissed. Screwed up my Apache config on my current computer and went into my cloud backup to find my old httpd.conf. Found old laptop was still backing up, story unravels from there.
His files were being backed up to Blackblaze, so he just accessed his backup files. I'm guessing the Photo Booth video was also backed up, and he just downloaded it from Backblaze.