(Silent Circle stopped offering Silent Mail because the company could not guarantee user privacy.)Īs far as secure communications go, Silent Circle's offerings are top-notch, providing a strong balance between usability and security. Silent Contacts is an encrypted address book, while Silent Keys, aka Silent Circle KeyManager, stores login and security information for other Silent Circle apps. Silent Text encrypts Internet-based instant messages that can be set to "self-destruct." Silent Phone encrypts Internet-based voice and video calls over Wi-Fi or mobile data connections. Silent Phone, Silent Text (pictured), Silent Keys and Silent Contacts are developed by Maryland-based secure-communications provider Silent Circle, which jointly makes Blackphone with Spanish phone maker GeeksPhone. Most of these apps, plus their paid service plans, can be had for regular Android and iOS phones, but with the Blackphone, one year's subscription costs for each app - estimated to total $400 total - are included in the cost of the phone. Security Appsīlackphone comes preloaded with apps for secure messaging, secure calls, encrypted cloud storage and a virtual private network (VPN) for protecting online privacy. In the case of an attack on the phone's baseband processor, for example, attackers who used a malicious cell tower to capture Blackphone's traffic would see only random-looking jumbles of characters, thanks to Blackphone's extensive encryption. The company also has a bug-bounty program that pays hackers who find security problems with the phone.īlackphone's approach to security is to assume the network is already compromised. SGP Technologies aims to soon add detection and blocking of premium-SMS messages, which are used in marketing campaigns and cyberscams, and can cost phone users money. Stock Android, phone, texting and contacts apps are also included. Blackphone comes preloaded with a suite of top-tier security apps, including Silent Phone, Silent Text, Silent Contacts, the encrypted online storage service SpiderOak and two apps from the online-privacy provider Disconnect.
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