Final answer:
The term 'insider threat' accurately describes the risk that an individual within an organization poses to its security by potentially misusing authorized access to do harm.
Step-by-step explanation:
The term that best matches the definition of 'The likelihood, risk, or potential that an insider or her authorized access to do harm to the security of the organization or its clients' is insider threat. An insider threat is a security risk that originates from within the targeted organization, typically by someone with authorized access such as an employee or vendor, who might misuse access to sensitive information or systems for malicious purposes or personal gain. This concept does not only involve species biology, but also environmental damage, social and economic impacts, and public health issues, as well as the feasibility of control or eradication. Risk analysis techniques are now an important tool to mitigate such threats