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  • By Tracy Jan and Elizabeth Dwoskin | The Washington Post

Silicon Valley significantly escalated its war on white supremacy this week, choking off the ability of hate groups to raise money online, removing them from Internet search engines, and preventing some sites from registering at all.

  • By Narseo Vallina-Rodriguez, Research Assistant Professor, IMDEA Networks Institute, Madrid, Spain; Research Scientist, Networking and Security, International Computer Science Institute based at, University of California, Berkeley and Srikanth Sundaresan, Research Fellow in Computer Science, Princeton University | The Conversation

Our mobile phones can reveal a lot about ourselves: where we live and work; who our family, friends and acquaintances are; how (and even what) we communicate with them; and our personal habits. With all the information stored on them, it isn’t surprising that mobile device users take steps to protect their privacy, like using PINs or passcodes to unlock their phones.