Is there any procedure to make the accounts usable only on a single node? For example, I’m running an Ethereum node on device: A. I have two accounts. If I start the geth instance in another device: B and copy the keystore contents of device: A to device: B, I can use those accounts if I know the passwords. Is there any way to make these accounts unique to a device i.e., these accounts should be unusable on other devices. Can I link enode URI to account address so that I can identify the device with the account name?
P.S: I'm running on a private blockchain