Yep, there is such an insurance product though not widely publicized due to an undesirable effect of getting the crime on a sudden upsurge due to the huge amount of money that can be made from it. This form of insurance may be optional for private individual insurance policies but is mostly standard for business insurance. It has its limitations though, for it only covers the costs of the ransom and negotiations but any transaction (ransom) paid outside of the policy cannot be reimbursed for apparent connivance reasons. This gives business enough buffer to negotiate for, say the kidnapping of a VP or GM assuring they have the right resources to obtain their release(however absurd and crazy it may seem).