16.3 Cyber, Aviation, and Other Specialty Lines

Cyber Liability Insurance

Standard CGL and property policies were not built for data breaches; ISO added the CGL exclusion for access or disclosure of confidential information (the so-called "data breach exclusion"), pushing cyber risk to a dedicated cyber liability policy. Cyber coverage splits into two halves:

Exam Key: First-party = the insured's own costs to recover. Third-party = liability claims brought by others (customers, regulators). Ransomware payments fall under first-party cyber extortion coverage.

Cyber policies are almost always written on a claims-made basis with a retroactive date and offer a breach-response ("coach") service that coordinates legal, forensic, and notification vendors. Sublimits commonly cap social-engineering fraud and regulatory fines below the aggregate.

Aviation Insurance

Aircraft are excluded from CGL and personal auto policies, so they require specialty aviation coverage. The two core parts are:

• Hull coverage - physical damage to the aircraft itself, written either in motion / not in motion or all-risk. Hull is typically valued on an agreed value basis.
• Liability coverage - bodily injury and property damage to others, often split between passenger liability and public (non-passenger) liability.

Aviation liability is frequently expressed with split limits. A limit shown as $1,000,000 / $100,000 means $1,000,000 per occurrence but $100,000 per passenger seat.

Worked Example - Aviation Split Limit

A charter aircraft carries $5,000,000 / $250,000 liability and seats six passengers. A crash injures all six. The per-passenger cap is $250,000 x 6 = $1,500,000, which is within the $5,000,000 per-occurrence limit, so the policy can respond up to $1,500,000 for passengers. Had it seated 25 passengers, the per-seat math ($6,250,000) would be capped at the $5,000,000 occurrence limit.

Other Specialty Lines and the Surplus-Lines Market

Several exposures fall outside admitted standard markets:

• Ocean Marine - hull, cargo, freight, and Protection & Indemnity (P&I) liability for vessels at sea. Often subject to coinsurance clauses.
• Inland Marine - movable property and property in transit; written on filed and non-filed (unique) forms.
• Difference in Conditions (DIC) - fills gaps left by standard property forms, commonly adding flood and earthquake.
• Errors & Omissions (E&O) / Professional Liability - claims-made coverage for professional negligence.
• Directors & Officers (D&O) - protects corporate leadership against management-decision claims.

Surplus (Excess) Lines

When no admitted insurer will write a hard-to-place risk, agents place it in the surplus lines market with non-admitted insurers. Rules:

• The agent must hold a surplus lines license and perform a diligent search (typically declinations from three admitted carriers).
• Non-admitted insurers are not backed by the state guaranty fund.
• A surplus lines premium tax applies.

Worked Example - Ocean Marine Coinsurance

Cargo worth $400,000 is insured for $300,000 under an 80% coinsurance clause. The required amount is 80% x $400,000 = $320,000. The insured carried only $300,000, so the penalty ratio is $300,000 / $320,000 = 0.9375. On a $40,000 loss, the policy pays 0.9375 x $40,000 = $37,500 (before any deductible).

Admitted vs. Non-Admitted - Why It Matters

The distinction between admitted and non-admitted (surplus lines) insurers is a recurring exam favorite, because the protections differ sharply for the policyholder.

Exam Key: A surplus lines policyholder gives up state guaranty-fund protection and standardized forms in exchange for capacity that admitted carriers will not provide. The producer must disclose the non-admitted status to the insured.

Professional Liability Nuances

E&O and D&O are written on a claims-made basis, meaning the policy in force when the claim is made responds, subject to a retroactive date that excludes prior acts. This contrasts with the occurrence trigger used by most CGL forms, where the policy in force when the injury occurs responds.

Trap: On a claims-made policy, a wrongful act before the retroactive date is not covered, even if the claim is reported during the policy period. When switching carriers, an insured buys an extended reporting period (tail) to keep coverage for claims reported after the policy ends but arising from acts during the policy term.

Boiler & Machinery (Equipment Breakdown)

Another specialty line, Equipment Breakdown (historically Boiler & Machinery), covers sudden mechanical or electrical breakdown of pressure vessels, boilers, HVAC, and electrical systems - perils the standard commercial property form excludes as it treats breakdown as wear-and-tear, not a covered cause of loss. Equipment breakdown coverage pays for the damaged equipment, resulting property damage, and business income, and crucially includes loss-prevention inspections as part of the service.

Exam Key: Standard property forms exclude internal mechanical and electrical breakdown. Pair the property policy with equipment breakdown coverage to close that gap - this is one of the few lines where the insurer's inspection service is a core feature, not just underwriting.

Trap: Equipment breakdown is not the same as the property policy's coverage for an ensuing fire or explosion. The property policy may pay for resulting fire damage, but the breakdown of the machine itself is recovered only under equipment breakdown coverage.