Wrong! Everything on it is theirs..... but who are 'they'?
Apple has developed a system to identify child abuse images on a customer's iPhone and iPad. That has to be good, surely? Well that's how it is being sold - for now. Android will no doubt follow.
However there are privacy concerns that the technology could be expanded to scan phones for prohibited content or even political speech.
"Regardless of what Apple's long term plans are, they've sent a very clear signal. In their (very influential) opinion, it is safe to build systems that scan users' phones for prohibited content," Matthew Green, a security researcher at Johns Hopkins University, said.
"Whether they turn out to be right or wrong on that point hardly matters. This will break the dam — governments will demand it from everyone."
In the not too distant future if you have a mobile device governments will know of everything you photograph, text, say, where you were, how you got there, how long you stayed, and and by comparing your data with others, who you were with.
This new tech is being sold as a positive to stop a disgusting crime, and it is, but boy are there downsides.