I believe they use Yodlee and yes there is a lot of trust in Yodlee/Tiller to keep data safe. The integrations go through an OAuth type flow where you hit say C

I believe they use Yodlee and yes there is a lot of trust in Yodlee/Tiller to keep data safe. The integrations go through an OAuth type flow where you hit say Chase first and approve/revoke individual accounts so it seems like it's API based now, not screen scraping. For all those concerns, I bet you could automate just parsing all the data from the statements or a CSV export.