Is this property data secure? Where is the property data stored? Who gets to see the data once stored?

From HOVER:

HOVER takes security extremely seriously. We encrypt all communications between HOVER users and our servers. All customer data, including personally identifiable information (PII) and property details, are stored encrypted. HOVER users control access to property information, meaning you can keep your data to yourself or make it more widely available - to your team or the world!