How Covid-19 contact tracing works on your phone

PLUS: Signal messaging tips, rising Covid cases, and how police tactics can turn peace into violence. View this email in your browser  |  Manage newsletter subscriptions 06.07.20   PUBLIC HEALTH Covid-19 Cases Were Already Rising Before the George Floyd Protests BY MEGAN MOLTENI The easing of stay-at-home orders and Memorial Day travel have led to spikes in some parts of the country. That's bad news for what comes next.   ENCRYPTION Signal Tips: Get the Most Out of Your Private Messaging BY BRIAN BARRETT The best end-to-end encrypted messaging app has a host of security features. Here are the ones you should care about.   STEPPING DOWN Reddit's Cofounder Wants a Black Person to Take His Board Seat BY SIDNEY FUSSELL Alexis Ohanian's resignation is among the most dramatic responses in the tech industry to the killing of George Floyd.   STAY HEALTHY How Covid-19 Contact Tracing Works on Your Phone BY DAVID NIELD Developers are working on track-and-trace systems to keep infection levels low. The apps aren't here yet, but here's what they do—and how you can enable them.   POWER PROBLEMS India Is Using More Solar Energy—but It Carries a Lead Risk BY ANURADHA VARANASI In rural areas, solar power is stored in lead batteries. If they aren't properly recycled, contamination can cause health problems.   POLICING The Police's Military Tactics Turn Peaceful Protests Violent BY NICOLE KOBIE, WIRED UK Research shows that calm and negotiation, not excessive force, reduces damage. So why are officers still turning to tear gas?   PLAINTEXT Mark Zuckerberg Is an Arbiter of Truth—Whether He Likes It or Not BY STEVEN LEVY Plus: Facebook in its early days, reasonable speech on the internet, and an overdue decision in Philadelphia.   MUSCLED OUT The Best Theragun Devices to Buy (and Which to Avoid) BY MEDEA GIORDANO Therabody's percussive therapy devices help soothe achy muscles. Here's our guide to their lineup.   GADGET LAB PODCAST Big Tech's Role in Policing the Protests BY WIRED STAFF This week, we discuss how tools developed in Silicon Valley are being used to erode the privacy and safety of citizens protesting police brutality.     This e-mail was sent to you by WIRED. To ensure delivery to your inbox (not bulk or junk folders), please add our e-mail address, wired@newsletters.wired.com, to your address book.   View our Privacy Policy Unsubscribe or Manage your newsletter subscriptions