Trevor HewsonIn a fit of vague security-conciousness I thought that, since our old iMac is no longer going to be in regular use, I perhaps ought to remove it from the list of trusted devices on my iCloud account.
I've signed in at appleid.apple.com and can see all the devices logged into my iCloud account but, contrary to what I found on Apple's support pages, can't see any list of which devices are trusted. Clicking on the 'learn more' link beside Two Factor Authentication brings up a help page which says "A trusted device is an iPhone, iPad, or iPod touch with iOS 9 and later, or a Mac with OS X El Capitan and later that you've already signed in to using two-factor authentication."
So it looks like all properly signed in Apple devices (except my old MacBook running Montain Lion/Snow Leopard) are trusted whether I like it or not. Is this right?