Thanks for the replies. I'm completely aware that the 'data' is one sided. However, the fact that Google are doing something wrong doesn't excuse Apple doing something wrong. Similarly, I'm aware that questioning the ethics or legality of Apple's actions is inflammatory. However, what I'm trying to open up is the question about data like this being stored when the data relates to legal minors. The 'being sent back to Apple' component of this is not really a valuable component of the data as Apple would argue that the phones do indeed come under their remit and are therefore all little repositories for Apple ... who can collect the data when they see fit. Essentially, what I would like to do, is leaver the fact that younger people use these devices, be they Apple's iPhones, or Android, or software like Chrome, that essentially track, or monitor young people to put a different spin on this topic. As has been pointed out, there's endless reading on this topic. I just wanted to see what people thought about the ethics of monitoring young people. Again, Apple may not have received the information or cared about it, but the device is still doing it. So, is it okay? For those of us in academia, would we monitor respondents without consent? Would we monitor legal minors without consent? Pearse Stokes