What bothers me most about this is not the caller's privacy (he chose to upload his photo into a public profile after all), but the called person's. The called

What bothers me most about this is not the caller's privacy (he chose to upload his photo into a public profile after all), but the called person's. The called Android phone has to obtain the "correct" photo in some way. The least horrible implementation I can see for this is a local query to the G+ app installed on the phone, to check if the caller is in your circles. However, any online photo check, as implied by the article, will send a caller's phone number to Google, allowing them to collect data about all the people you receive calls from. Update: the original source [0] writes that G+ is queried both for incoming _and_ for outgoing calls! Time to call your data protection commissioner! [0] https://plus.google.com/+AttilaBodis/posts/E6Z77tkr78r https://plus.google.com/+AttilaBodis/posts/E6Z77tkr78r