IMHO yes it would be a violation but WhatsApp would technically still be end to end encrypted.
Do all the data mining and pattern matching on the device then upload some blob of data whenever needed to better shape the advertising profile.
Like I said I am honestly surprised this is not what Facebook have been doing since the day they bought WhatsApp. I thought this was the reason they bought them. Sure the messages are all encrypted in the air and on their servers (theoretically anyway) but on the device is free rein and always has been.
I can see (at least) two potential issues doing this though.
First is obviously the resources of a phone vs the super clusters they have chugging away in Facebook data centers.
Second is it would mean their precious data mining algorithms would need to be built into the app and on the device. This may be a huge intellectual property concern for them as it wouldn't take long for people to extract that no matter how obfuscated they try to make it. Of course that also depends on if it is even possible to get it onto a phone in the first place in a useful way.
Do all the data mining and pattern matching on the device then upload some blob of data whenever needed to better shape the advertising profile.
Like I said I am honestly surprised this is not what Facebook have been doing since the day they bought WhatsApp. I thought this was the reason they bought them. Sure the messages are all encrypted in the air and on their servers (theoretically anyway) but on the device is free rein and always has been.
I can see (at least) two potential issues doing this though.
First is obviously the resources of a phone vs the super clusters they have chugging away in Facebook data centers.
Second is it would mean their precious data mining algorithms would need to be built into the app and on the device. This may be a huge intellectual property concern for them as it wouldn't take long for people to extract that no matter how obfuscated they try to make it. Of course that also depends on if it is even possible to get it onto a phone in the first place in a useful way.