> SMS support I thought it was well-established that SMS text messages should not be used for authentication purposes? Here's the original feature-request: https://github.com/ory/kratos/issues/1570 - user @zepatrik raised concerns about this and everyone else just ignored him. Yikes.
Yes, this is definitely true. However, there are use cases and companies who rely on SMS based two-factor: - Using SMS for phone verification - Using SMS for mobile login (think dating apps for example) - Using SMS for two-factor where other factors are not available / convenient (often in emerging markets) SIM Swap Attack, SIM Port Hacking are all real, but as always in security it comes down to your threat model to…
Dating apps in particular seem to be a problematic example to me. In some regions, phone numbers change owners quite easily (e.g., no possibility to port a phone number to a new contract, and quick re-cycling of the phone number when a contract is terminated).