On March 13, we will officially begin rolling out our initiative to require all developers who contribute code on GitHub.com to enable one or more forms of two-factor authentication (2FA) by the end of 2023. Read on to learn about what the process entails and how you can help secure the software supply chain with 2FA.
Mostly. The 6 digit standard ones that you see almost everywhere are standard TOTP codes and most apps work for them. There are some proprietary things out there too but you typically see those with a matching app from the same company. Those are far less common though so for practical reasons you can assume they are all interchangeable.
Those values are computed separately what the app is really storing is just the input values which are then combines with the current time to create the 6 digit code. That means that keeping that input value (seed) safe is a big deal, and how and where that is done is one of the major differentiators between the various options.
do all authenticators work for all services?
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Mostly. The 6 digit standard ones that you see almost everywhere are standard TOTP codes and most apps work for them. There are some proprietary things out there too but you typically see those with a matching app from the same company. Those are far less common though so for practical reasons you can assume they are all interchangeable.
Those values are computed separately what the app is really storing is just the input values which are then combines with the current time to create the 6 digit code. That means that keeping that input value (seed) safe is a big deal, and how and where that is done is one of the major differentiators between the various options.