The Syniverse Hack: Why Using SMS for 2FA is a Bad Idea
Security gurus have suggested for years that relying on SMS for two-factor authentication is a bad idea. Reasons include Your phone may be stolen Many people allow SMS messages to be displayed on lock screens Your phone can be SIM-cloned People inside your phone carrier may have access to your text messages But here's a new issue. A little-known company named Syniverse revealed something interesting in an SEC filing: "...
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