I have a Trezor. In attempting to find out why I have have not received Bitcoin Gold coins Trezor Support asked for my XPUB - I gave it to them along with the YPUB too. Is this safe? Should I move my coins? Your help is greatly appreciated.
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What is a YPUB?– meshcolliderCommented Jan 1, 2018 at 9:12
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It seems to be the same as XPUB except for the Segwit addresses.– user6542Commented Jan 1, 2018 at 10:33
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Your keys are not compromised, as answered below, but even if they were, you wouldn't need a new Trezor. Just resetting it and generating a new seed would be enough.– user48462Commented Jan 1, 2018 at 12:01
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Thanks Mark - much appreciated - and a Happy New Year to you. Best, DB– user6542Commented Jan 1, 2018 at 13:41
1 Answer
XPUB refers to an extended public key, and because it is only a public key, you have not compromised your private keys. Thus it is safe to continue using, yes. You have, on the other hand, compromised your privacy, as with that xpub Trezor support can derive all your addresses and know they are all yours. But it's likely they just want to look to see if you have any bitcoin gold balance on any of them, it's probably completely harmless
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Thank you very much for your expertise and time - I do appreciate it. Happy New Year! Sincerely, DB– user6542Commented Jan 1, 2018 at 10:30