Forgot password to id_rsa [duplicate]

You need to remove your SSH public/private keys, recreate them, and then add your newly created public key to the servers and online services you use.

• Remove your SSH public/private keys:

   rm ~/.ssh/id_rsa*
  

• Recreate the keypair, choosing a new passphrase:

   ssh-keygen -t rsa -f ~/.ssh/id_rsa
  

• Add the newly created private key to your OS X Keychain to store the passphrase and manage unlocking it automatically:

   ssh-add -k ~/.ssh/id_rsa
  

• Copy the public key to the OS X clipboard for adding to web services like GitHub, etc.

   cat ~/.ssh/id_rsa.pub | pbcopy
  

• Add your newly created public key to the ~/.ssh/authorized_keys file of the remote server. Be sure to ensure the correct permissions of both the remote ~/.ssh folder (700) and ~/.ssh/authorized_keys (600). You may want to investigate using ssh-copy-id to ease this process.

Edited on 11/18/2021