I asked WIRED staffers and friends what they do to protect themselves in dicey situations, and I got a wide range of responses—everything from walking with keys held between their fingers in case they need to fight someone off, to carrying pocket knives and pepper spray, to simply talking on the phone with a friend until they’re safe. But as technology writers, the Gear team wondered if there was something better, a way for all this tech we already carry with us—our phones, our smartwatches—to provide an assist.

Read full article on Wired – Threat Level