Trustees by definition must be trustworthy. This person or entity will be able to sign checks and be able to deplete all funds from your accounts. You can protect yourself in various ways. You may have two trustees and both are required to sign. That may be cumbersome. You might take personal control of the checkbook and have them sign one check at a time, as you require. You could act as trustee on their IRA account. A fidelity bond is not a good choice for protection. Often, a felony conviction must be obtained before collecting on a fidelity bond. You, the beneficiary, should not be a signer on any account.