Answer the questions below:
- Why is it important to encrypt your wallet?
Because by encrypting it, you will lock you coins and no one will be able to steal ( spend ) your funds.
- What is the risk of not having a password if an attacker gets access to your file system?
If some one wants to steal your money, they can do that by stealing your private key.
The private key is stored in a special file called Wallet.dat and Bitcoin Core Client puts your private key on your disc thus makes you vulnerable and if the an attacker gets access to your file system they can steal your private key and steal your funds, if you haven’t already encrypted your wallet by putting a password on it.