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The Blackphone is a privacy built smartphone developed by SGP Technologies, a wholly owned subsidiary of Silent Circle. SGP Technologies was originally a joint venture between the makers of GeeksPhone and Silent Circle. Blackphone provides Internet access through VPN.〔(heise.de: Das Blackphone soll die totale Überwachung stoppen (''"The Blackphone is to stop total surveillance"'') )〕 The phone runs a modified version of Android called SilentOS that comes with a bundle of security-minded tools.〔 On 30 June 2014, the Blackphone began to ship pre-orders.〔(Blackphone now shipping to pre-order customers ). Techspot. Retrieved 30 June 2014.〕 == Background == The concept of an encrypted phone has long been an interest of Silent Circle founder and PGP creator, Phil Zimmermann.〔 In a video on Blackphone's website, Zimmermann said, 〕}} Aaron Souppouris of ''The Verge'' states: The Blackphone also allows insecure communications. Mike Janke, CEO and co-founder of Silent Circle, has suggested there are certain calls people want to encrypt, but "if you're ordering a pizza or calling your grandma", it's unlikely you'll feel the weight of criminals on your shoulders. "This is why Blackphone is unique — it gives the user the chance to choose the level of privacy." Blackphone runs a custom-built Android OS called SilentOS. The operating system essentially "closes all backdoors" usually found open on major mobile operating systems. Some major features of SilentOS are anonymous search, privacy-enabled bundled apps, smart disabling of Wi-Fi except trusted hotspots, more control in app permissions, private communication (calling, texting, video chat, browsing, file sharing, and conference calls). Geeksphone also claims the phone will receive frequent secure updates from Blackphone directly.〔 It supports the following 2G, 3G, and 4G bands, respectively: * In North America (Region2): GSM: 850 / 900 / 1800 / 1900 MHz; HSPA+/WCDMA: 850 / 1700 / 1900 / 2100 MHz (42 Mbit/s); LTE FDD bands: 4/7/17 (Cat. 3 100 Mbit/s) * Rest of world (Region1): GSM: 850 / 900 / 1800 / 1900 MHz; HSPA+/WCDMA: 850 / 900 / 1900 / 2100 MHz (42 Mbit/s); LTE FDD bands 3/7/20 (Cat. 3 100 Mbit/s) LTE Cat. 4 (150 Mbit/s) is under development. In the summer of 2015, Silent Circle announced that they would be releasing a successor to the Blackphone, the Blackphone 2, in September 2015.〔https://venturebeat.com/2015/08/21/blackphone-2-from-silent-circle-will-test-whether-security-is-a-priority-for-smartphone-buyers/〕 It has a larger 5.5-inch screen and a faster Qualcomm Snapdragon Octa-Core Processor. The price has also been increased to US$799.00. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Blackphone」の詳細全文を読む スポンサード リンク
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