Ask HN: How to build trust with a startup in health tech space

We are building a startup which deals with user's health data record or EHR.The value proposition to the end user is lower price, better health management for chronic issues. We do not plan on using the data for ads or share it with any other partner.

But, recently WSJ published this article https://www.wsj.com/articles/your-health-data-isnt-as-safe-as-you-think-11574418606 .

For a small startup, how can we win the trust of our customers and pursue them to share EHR for their benefit?