Hi,
If I have a 24 word seed, and I split it into 2 - 12 and 12
If an attacker somehow finds either the first 12 words or the 2nd 12 words, is there anyway they can use that to easily derive/find the second 12 words? or am I as safe as If I simply had a 12 word seed (which many wallets use?)
Basically do the 2 halves in any way relate / help to derive each other, or do I retain half the entropy with half the seed? and does it matter if its the half including the checksum (can that be used in anyway to derive / guess what words it could be?)
Thanks
*if this is wrong forum / somewhere better to ask please advise.
Having half the seed does not help an attacker. What could harm you is storing the halves separately and losing access. Put the seed someplace safe offline. How safe depends on how much bitcoin you own. If you are talking hardware wallets you can also add a layer of security by using a password to protect the seed. If someone gained access to your Trezor or Ledger seed it would be useless to them, they could not reconstruct your accounts without the password.