 PROVO, Utah--BUSINESS WIRE--Vivint Smart Home, Inc. NYSE:VVNT, a leading smart home company in North America, today announced that U.S. News World Report named the company a Best Home Security System for 2021. This marks Vivints third consecutive year among the best smart home security systems in the U.S. News 360 Reviews annual guide to home security. U.S. News also named Vivint the Best Professionally Installed Security System for the third year in a row. The U.S. News guide t 