The Financial Times reports WhatsApp has endured a breach involving spyware being installed through the app's voice calls. The hack placed surveillance software on people's phones by simply dialing them on the messaging app. The spyware would penetrate systems regardless of if a person answered the call, and those calls would unknowingly vanish from phone logs. “This attack has all the hallmarks of a private company known to work with governments to deliver spyware that reportedly takes over the functions of mobile phone operating systems,” WhatsApp said. “We have briefed a number of human rights organisations to share the information we can, and to work with them to notify civil society.” WhatsApp is unsure how many of its 1.5 billion worldwide users were affected by the hack and is urging users to update to the latest version of the app. (Registration may be required to access this story.) 
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