MFA typically uses a code sent via SMS text message as the second verification factor.īut SMS texts can be problematic if you’re traveling and don’t have mobile phone service outside your city or country. It protects companies and customers from security breaches by requiring that customers also have physical possession of a verified device, such as a phone or security fob. Multi-factor authentication (MFA) makes it harder for hackers to get into customer accounts with a password alone.
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