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The bad idea is being sent a (potentially interceptable) SMS with a code. The Estonian method is described as using a private key present on the SIM card, just
by brainfire 10y ago
The bad idea is being sent a (potentially interceptable) SMS with a code.
The Estonian method is described as using a private key present on the SIM card, just like a normal smart card used for authenticating/signing.
- candiodari 10y agoThat's how every bank I know in Australia, at least 2 US banks and 4 European banks do it. Transfer (sometimes login too) ? Code over SMS. Besides, pretty much all banks simply use 2 or 3 factor authentication as an anticompetitive tactic (half the businesses in most countries pay the banks 2-300$ per month just for scheduled download of transactions)