I hope i got it right: they scan private content, which users try to upload to an Apple/Amazon cloud server? The scan job is done by the iphone instead of the server, maybe because it's "smart", resource-saving or because it happens before the upload. First thought in the private law domain would be: entities controlling access to their ressources (serverspace) is nothing new or special. People uploading images and videos, which they want to be private, to "clouds", which are sold as private, but are unhappily not private, maybe because digital culture is faster than law, deserve a wake-up-call and new laws.