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As I said, for many banks, in order to log in to the bank's website on a laptop, you need to receive a 2FA code sent through the bank’s app on an Android phone.



I’ve found that many times when a service says this the system will work with any OTP program. They just don’t tell you specifically. Maybe they don’t know, think it’ll confuse, and/or prefer you didn’t.


Not always, some countries actually require this to be sent over a bank-specific protocol.


“many times” is roughly equivalent to not always.


Here (in Russia) typically SMS is used as a second factor and you don't need an app. Requiring to install an app is basically requiring to buy a modern smartphone only to be able to log in.




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