In 2016, NIST announced it was deprecating SMS-based 2FA (second-factor authentication) from its Digital Authentication Guidance. As the internet works to harden application and online security, what are the proper options available for truly secure authentication? What are those OOB (out-of-band) transactions anyway? Why is identity security so hard? Learn about the tools that define the identity security landscape and how to easily integrate strong identity verification methods with your existing services. BYOA (bring your own acronyms).