TheTelegraph: WhatsApp has urged users to update their messaging app after concerns were raised that hackers could inject spy software on to phones via the call function. The Facebook-owned company said the spyware was spread by an “advanced cyber actor”, and infected multiple mobile phones using a major vulnerability in the app. The spyware, developed by the secretive Israeli spyware company NSO Group, has the ability to give hackers full access to a phone remotely, allowing them to read messages, see contacts and activate the camera...