The lesson
When trust is the question, write the explainer in the CEO's name and state the banks, regulators and insurance limits outright.
The post is bylined to Immad Akhund, co-founder and CEO, under the title "How Mercury works with its partners to bring you powerful banking". The text names partner banks and the sweep network, and its one subhead comes near the end: "What's next: Mercury Bank, N.A.". Numbered footnotes with disclosures sit under the footer links.
Don't copy the long, dense paragraphs that run with no subhead until near the end. Keep the senior byline and the plain account of how the product is built.