> Do you mean you expect me to give my banking site/app credentials to X?
In Finland it is common for many online shops to handle payment, and authentication, using a banking account.
You never hand over your actual banking credentials, instead it is something akin to OAUTH2 - so you're at a merchant site and you'll see "Pay with Online BanK" with logos to click for whichever bank you have an account with. Exactly the same as "Login with Google/Github/Facebook/etc".
I changed my name last year, and due to other integrated services many companies automatically updated their records when the change became legal. These kind of integrations seem common and thus far "secure".
In Finland it is common for many online shops to handle payment, and authentication, using a banking account.
You never hand over your actual banking credentials, instead it is something akin to OAUTH2 - so you're at a merchant site and you'll see "Pay with Online BanK" with logos to click for whichever bank you have an account with. Exactly the same as "Login with Google/Github/Facebook/etc".
I changed my name last year, and due to other integrated services many companies automatically updated their records when the change became legal. These kind of integrations seem common and thus far "secure".