Why 2FA SMS is a Bad Idea

Why 2FA SMS is a Bad Idea

Two-factor authentication (2FA) brings an extra layer of security that passwords alone can’t provide. Requiring an extra step for a user to prove their identity reduces the chance of a bad actor gaining access to data.

One of the most common methods of 2FA is SMS text messages. The problem is that SMS is not a secure medium. Hackers have several tools in their arsenal that can intercept, phish, and spoof SMS. Despite this security flaw and better options for authentication, SMS-based 2FA is still used by several institutions.

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Story added 7. January 2020, content source with full text you can find at link above.