If you’re concerned about mobile security, then you might want to spend $629 on a phone designed with security in mind.
Blackphone uses a custom version of Android its developers call PrivatOS. It comes unlocked with a range of privacy tools pre-installed. These include the Silent Circle suite of encryption applications, including Silent Phone, Silent Text, and Silent Contacts; anonymous search, private browsing, and VPN from Disconnect; and secure cloud file storage from SpiderOak.
Initial pre-orders have sold out, and Blackphone say they are not taking additional orders until later this month.
Ars Technica have an extensive and exclusive review.