Keeping Your Vivint Security System Safe from Hackers 

https://www.thehomesecurityadvisor.com/top-alarm-companies/vivint-review-2015/

If your Vivint Home Security equipment package includes smart home devices, such as a Vivint Security Camera or thermostat, you should be advised that extra precautions should be taken to protect your WiFi networks.
Research the Device
If you are planning to add 3rd party smart home devices to your Vivint Alarm System, it is important to follow recommended guidelines to minimize the chances of being hacked. First, it is best to purchase equipment from reputable smart device manufacturers.

Register the Equipment
It’s important to register each device. This will accomplish a couple of things:
1. Activate the warranty and
2. Qualify you for receiving any firmware updates.

Pay Attention to Passwords
Make sure that you change the default passwords. Try to use different combinations of letters, cases, numbers, and symbols.

Make Sure Your Wi-Fi Network is Secure
To keep your Vivint security system safe, you need to secure the entire home network. Changing the name of the network and the default password is a good place to start. Use a network name that doesn’t include your address or any personal details.

Consider Professional Installation
While the basics of the DIY system install are pretty straight forward, you might want to get professional help to enhance your network security.

Reset to Factory Default Settings
Before you dispose of, sell or give away any of your Vivint Alarm System smart devices, make sure to remove all of your data. For more information on Vivint Smart Homes, Vivint Pricing and Vivint Reviews... visit The Home Security Advisor.
https://www.thehomesecurityadvisor.com/top-alarm-companies/vivint-review-2015/