The allegation is NOT that they shared/sold data to any third parties but that their Plaid Link user interface, where people enter their banking information to add it to Plaid, looks like the customer's financial institution (i.e, uses the bank's branding colours and logo).
Because of this branding, people can reasonably assume that they are sending that data directly to their bank without knowledge, and therefore consent, to share their information with Plaid itself.
If that understanding is correct then this isn't a business practice or security issue, but a user consent issue. That's a problem that definitely needs to be fixed, and the injunctive relief requires them to change the branding and disclosure to make it clearer that people are interacting with Plaid rather than their bank.
But to me it's definitely not a reason to cancel your account or boycott Plaid or whatever.
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