Hi, do you think is a good security way spit my BTC in 20 different addresses?
1. If (and if...) a private key is cracked, I have still other 19/20 BTC
2. I have a seed
3. I have .dat wallet crypted backup
Is not it a good thing?
If someone steal my pc, i can ricreate the wallet fast and transfer all my BTC into an other pc...
Private keys are almost not possible to crack with the processor available at present , you may also find it impossible for Miners also and if you want to split your wallet into 20 address , there is no point of security ,hackers can still hack them as they can get into your wallet.
getting into wallet is much easy than cracking private keys.