Increase Metamask security by importing accounts?

If you export the private keys of the accounts/addresses to a new wallet (with a new seed phrase) then they will still be connected to the initial seed phrase - so if someone else knows your old seed phrase then they would also have access to all the private keys. Exporting the private keys to another wallet does not “connect” them to the new seed phrase.
The above is my personal understanding.

Please take a look here to learn more:

  1. What is a ‘Secret Recovery Phrase’ and how to keep your crypto wallet secure - #3
  2. Recovering and Backing up your Accounts’ Tokens
  3. What are Imported Accounts?
3 Likes