What endorsement covers the loss of money, securities, or property resulting from a threat to the insured?

The endorsement that specifically covers the loss of money, securities, or property resulting from a threat to the insured is the extortion endorsement. This type of coverage typically addresses situations where an individual or entity is coerced, threatened, or blackmailed into surrendering money or property due to fears for their safety or the safety of others. It often includes incidents where a threat is made against the insured, compelling them to comply to avoid harm, distinguished from theft or robbery, which involve taking property without the necessity of a direct threat to the insured's safety.

Robbery involves force or intimidation in the act of taking property but does not necessarily imply a sustained threat against the insured. Theft broadly encompasses the illegal taking of property but does not focus specifically on threats. Fraud typically refers to deceitful practices intended to secure an unfair or unlawful gain but does not relate to physical threats to the insured. Thus, the extortion endorsement is designed to cover the unique risks associated with situations where threats are made, making it the correct answer in the context of this question.