Add a Trusted Individual to Your ORCID Account
Trusted individuals are other ORCID holders to whom you have granted permission to update your ORCID record. You decide whether to grant access to them and you may revoke access at any time.
Answer
A trusted individual does not need to be another researcher, but must have an ORCID.
Trusted individuals have access to your ORCID record, and will be able to edit any information on it, and make connections with external systems. For security reasons, a trusted individual may not edit anything that requires you to enter your ORCID password, including: adding email addresses, resetting your password, and deleting your account (which requires access to your email).