[I work at Brex]
Data privacy is something we’re really passionate about. We’ve had strong stance internally since we launched the Brex card, and a few weeks ago we made that publicly available, in a very transparent way (https://brex.com/privacy). Tl;dr: we do not and will not sell any personal information.
You can read more about it here: https://brex.com/blog/privacy-policy-update/
Ok, you won't sell it; but will you give it to third parties (even without payment) without the consent of the subject beyond the extent required by law?
(BTW, this was the weasel-language used by Facebook. They didn't sell information to Cambridge Analytica, but they conveyed it to them anyway, where it was misused.)
[I work at Brex, and I’m not a lawyer :)]
Yes, you’re right in that we work with a small number of 3rd party systems which go through a rigorous screening, much of it focused on how they store and secure data. These systems are either for internal monitoring (e.g., system logging), or for running the business (e.g., KYC).
One more thing worth mentioning about 3rd parties: our contracts explicitly do not allow them to use your personal information for their own purposes or for marketing.