Through mobile apps, wearables and social media sites, a growing number of people are quickly alerting family and friends when they need help, are in danger or that they're safe.
By Queenie Wong, qwong@bayareanewsgroup.com, San Jose Mercury News: Business
Wed, 08/31/2016 - 7:40am
Through mobile apps, wearables and social media sites, a growing number of people are quickly alerting family and friends when they need help, are in danger or that they're safe.