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Content type: Examples
In November 2016, the security contractor Krytowire discovered that cheap Chinese Android phones often include pre-installed software that monitors users' locations, messaging, and contacts, and sends the gathered information to China every 72 hours. Shanghai Adups Technology Company, the Chinese firm responsible for the software, said its code had been installed on more than 700 million phones, cars, and other devices without informing users, but that it was not intended for American phones.…
Content type: Explainer
Phone networks are divided between two networks: the physical and the mobile. The physical runs on the Public Switched Telephone Network (PSTN) that serves your home phone. Mobile networks are dominant in the age of communication and are used to relay mobile communications to the PSTN. The most prominent mobile networks are GSM networks (Global System for Mobile communications) and are what we use everyday to communicate with one another. Another system is known as CDMA (Code Division Multiple…