How blockchain – the technology behind Bitcoin – could change your life

12/1/2018 – Guardian Circle is a security firm that wants to use blockchain to take emergency services into a new age, sending an instant alert to the people you choose – friends, family, medical professionals or its own security staff. Unlike the 911 system or similar senior alert apps, it will also be able to share your location quickly and securely with the people you’ve chosen, even if you’re on a mobile phone. It also lets those people speak to each other, to make it easier to co-ordinate how to deal with an incident – for example, if your mother knows about an allergy you have but the neighbour who’s first on the scene doesn’t.


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