Why aren’t we allowed to opt-out of CalNet 2-Step? Duo Mobile & CalNet 2-Step explained

What is CalNet 2-Step? What are the direct and indirect costs? And why are we required to use it?

“Empirical Measurement of Systemic 2FA Usability” provided us with important information about 2FA usage on campus:

https://www.usenix.org/system/files/sec20-reynolds.pdf

More official information about CalNet 2-Step:

https://calnetweb.berkeley.edu/calnet-2-step

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