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Stop Treating Phone Numbers As A Digital ID
(notthesolution.substack.com)
This is a most excellent place for technology news and articles.
I think my question was clear enough. The comment didn't mention banks, I've never had a bank that did that, and we generally don't try to hide our identities from our banks anyway. My best guess was that they misunderstood how public/private keys work, but since that was only a guess, I asked.