Thanks for the replies and infos. I guess my memory is failing, I thought when I created the vault it gave me a seed and a secondary private key with password? But if was actually just two private keys, then it's probably lost to the sands of time.

Does anyone know what the screens looked like during the vault creation process from that time period? This would have been early 2015, when Coinbase first released their multisig vaults. My private key handling was poor at that time, but I've got a few potential strings to try. Going to pull an old computer out of storage and see if I left any clues on there... Fingers crossed, although at this point it's looking a little grim.

Thanks again!

Hello, this may be a long shot, but I was looking for information for retrieving 1 btc from an old Coinbase Vault account.

Back in 2015 Coinbase started the 2 of 3 multisig Vault accounts. I transferred a bitcoin into the account to test it out (had value of ~$250). I had tried to take it out of the vault, but had some weird issues with the secondary email, and eventually kind of forgot about the whole scenario.

Fast forward a few years (wow, time goes fast) and I had completely missed all of Coinbases emails involving stoppng multisig Vault support. Now I'm trying to put together whether it's possible at all for me to regain access. Coinbase I beleive deleted the key they had on their end, so it's up to me to find the other 2 and hopefully regain access. Would the 2 keys on my end be a seed and password combo?

I know when I deposited the BTC. I have some potential seeds that could contain the bitcoin, however I'm pretty sure there was also a password on top of the seed. Does anyone know if the old multisig vaults used a 12 or 24 word seed? Also, was wondering what would be the best way to go about checking the seeds, along with various password combinations for a BTC balance? Did Coinbase have any particular requirements for password length, special characters, etc? It was so long ago that my memory of the specifics is fading, but I know it has to be some variation of passwords that I used to use...

Any pointers, tips or suggestions would be GREATLY appreciated!