Best 2 Factor Authorization for Coinbase and Gemini

[jerry0]

Just to confirm.  If someone got access to your google authenticator or authy or those other two factor authorization character code or backups, could they get access to your coinbase/gemini account?


Is it similar to like if you have someone's seed phrase for their nano ledger ledger or software wallet, then they have access to your coinbase/gemini account?

[Charles-Tim]

Just to confirm.  If someone got access to your google authenticator or authy or those other two factor authorization character code or backups, could they get access to your coinbase/gemini account?

If your login details to the exchange has been known already to an hacker, only what next the hacker will need is the 2FA. In this regard, if the hacker has access to all these, your exchange account will be compromised. This is the reason it is preferred to have the 2FA on another device which is advisable to be airgapped.

Is it similar to like if you have someone's seed phrase for their nano ledger ledger or software wallet, then they have access to your coinbase/gemini account?

Like I commented, the login details are needed. But can be quite easy for the hacker to get access to all if just a device is used to access the exchange account and the 2FA. So if the single device is compromised, likely the exchange will also be compromised.

[o_e_l_e_o]

Wait you could use any two factor authorization on coinbase or gemini even though they only recommend like two options?

Yes.

But gemini doesn't allow you to use google authenicator right?

It doesn't matter. You can use any 2FA app.

So that is no concern?

It is the only iOS 2FA app I am aware of which is open source and privacy respecting.

Again I was planning to use google authenticator for both coinbase and gemini until they said they didn't have it for gemini.

Again, it doesn't matter.

So you have it in both phones in case one breaks?

If you want.

But what do you need to write down as the backup?

A string of numbers and letters you will be shown alongside the QR code. Usually 16 characters, sometimes more.