16.3 Cyber, Aviation, and Other Specialty Lines

Key Takeaways

  • Cyber liability splits into first-party (insured's own breach response, business interruption, ransomware) and third-party (liability to customers/regulators); written claims-made with a retroactive date
  • Aviation insurance is a specialty line excluded by standard forms: hull (physical damage, often agreed value) plus liability (passenger/public/property), voided by non-approved pilots or uses
  • Professional liability (medical malpractice, E&O, D&O) is claims-made; E&O excludes bodily injury while medical malpractice covers it; D&O has Side A/B/C structures
  • Split limits like 100/300/50 cap per-person, per-occurrence, and property damage separately; apply the per-person cap before testing the per-occurrence aggregate
  • An experience mod of 1.00 is average; below 1.00 is a credit (lower premium), above 1.00 is a debit (higher premium); modified premium = manual premium x mod
Last updated: June 2026

Cyber Liability: First-Party vs. Third-Party

General liability and property forms were never built for data breaches, so cyber liability is sold as standalone or endorsement coverage. The exam tests the first-party vs. third-party split, which mirrors the property/liability divide:

  • First-party cyber — the insured's OWN losses: breach response and notification costs, forensic investigation, data restoration, business interruption from a network outage, cyber extortion / ransomware payments, and PR/credit-monitoring expenses.
  • Third-party cyber — liability TO OTHERS: defense and damages from claims by customers/regulators for a privacy breach, network security failures that harm a third party, and media/content injury (libel online).

Cyber is almost always written on a claims-made basis with a retroactive date, paralleling other professional liability lines. A claim must be both made AND reported during the policy period (subject to any extended reporting period).

Aviation Insurance

Standard auto and property forms exclude aircraft, so aviation insurance is its own specialty market. Two core coverage parts:

CoverageWhat it covers
Hull (physical damage)Damage to the aircraft itself, written as 'in motion,' 'not in motion,' or 'all risks ground and flight'
LiabilityBodily injury and property damage to others; often split into passenger liability, public (non-passenger) liability, and property damage

Key aviation traps:

  • Admitted seat / single-limit: liability may be written as a single bodily-injury limit subject to a sublimit per passenger seat (e.g., $1,000,000 per passenger).
  • Coverage is voided if the aircraft is operated outside the approved use (e.g., charter when only private use is rated) or by a non-approved pilot lacking required ratings/certificates.
  • Aviation policies typically use agreed value for the hull, not ACV.

Cyber Liability Coverage

Cyber liability insurance addresses the exposures created by data breaches, network attacks, and the handling of private information — risks the CGL and property forms largely exclude. Cyber policies are written claims-made and split into first-party and third-party coverages the exam expects you to distinguish. First-party coverages reimburse the insured's own losses: breach-response costs (forensics, legal, notification to affected individuals, credit monitoring), business interruption from a network outage, data restoration, cyber extortion/ransomware payments, and reputational harm.

Third-party coverages pay the insured's liability to others: privacy liability for failing to protect personal data, network security liability for transmitting malware or allowing unauthorized access, media/content liability, and regulatory defense and penalties (where insurable).

Aviation and Other Specialty Lines

Aviation insurance is a specialized line covering aircraft hull and liability exposures that standard auto and CGL forms exclude. The exam expects familiarity with its parts: hull coverage (physical damage to the aircraft, written in motion, not in motion, or all risk), aircraft liability (bodily injury and property damage to others, often split between passengers and non-passengers/public), and airport/hangarkeepers liability for ground operations. Aviation underwriting weighs pilot experience, aircraft type, and use.

Other specialty lines the exam may touch include:

  • Boiler & Machinery / Equipment Breakdown — sudden mechanical or electrical breakdown of pressure vessels, machinery, and electrical systems, with valuable inspection services (the insurer's loss-control inspections often satisfy jurisdictional requirements).
  • Difference in Conditions (DIC) — broadens or fills gaps above primary property coverage, frequently adding flood and earthquake.
  • Pollution/Environmental liability — covers gradual or sudden pollution the CGL excludes.
  • Surplus lines — coverage placed with non-admitted insurers for hard-to-place or unusual risks, available only when admitted markets decline the risk.

The unifying exam idea across specialty lines is that they exist to cover exposures the standard property and CGL forms exclude — cyber, aviation, equipment breakdown, environmental, and flood/quake (via DIC) — usually on a specialized, often claims-made or inspection-driven basis.

Test Your Knowledge

A company's network is hit by ransomware. The cyber policy pays the extortion demand, forensic costs, and lost income while systems are down. These payments fall under which type of cyber coverage?

A
B
C
D

Professional Liability and D&O

The national portion groups several professional liability (errors and omissions) lines that all share claims-made triggers:

  • Medical malpractice — physicians/hospitals; covers BI from professional services. Often the only line where the insured has consent-to-settle ('hammer clause') rights.
  • E&O — covers economic/financial harm from professional mistakes (insurance agents, accountants, real estate, tech). Generally excludes bodily injury (the opposite of medical malpractice).
  • Directors & Officers (D&O) — protects corporate directors/officers and the entity for wrongful acts in managing the company; Side A (individuals when not indemnified), Side B (company reimbursement), Side C (entity securities claims).

Trap: Professional liability covers the rendering or failure to render professional services; intentional/dishonest acts and bodily injury (other than malpractice) are typically excluded.

Because these lines are claims-made, the retroactive date and the extended reporting period (ERP, or 'tail') drive coverage. A claim is covered only if the wrongful act occurred on or after the retroactive date AND the claim is reported during the policy period or any ERP. When a professional retires or switches carriers, buying a tail prevents a coverage gap for past acts — a frequent scenario question.

Split-Limits and Experience-Mod Worked Examples

Specialty and commercial liability frequently quote split limits, written as per-person / per-occurrence / property-damage, e.g., 100/300/50:

  • $100,000 max for any ONE person's bodily injury,
  • $300,000 max for ALL bodily injury in one occurrence,
  • $50,000 for property damage per occurrence.

Worked example: Three people are injured with BI claims of $120,000, $90,000, and $60,000. Recovery = capped at $100,000 for the first (per-person cap), $90,000, and $60,000 = $250,000, which is under the $300,000 per-occurrence cap, so $250,000 is paid (less any deductible).

Experience modifier (workers comp / commercial): the experience mod compares an employer's actual losses to expected losses. A mod of 1.00 is average; below 1.00 earns a credit (premium reduction) and above 1.00 is a debit (surcharge). A $50,000 manual premium with a 0.85 mod = $50,000 × 0.85 = $42,500 modified premium.

Other Specialty Lines to Recognize

The exam may name several niche lines in passing. Recognize what each covers:

LineCovers
Employment Practices Liability (EPLI)Claims of wrongful termination, discrimination, harassment by employees (claims-made)
Fiduciary liabilityLiability for mismanaging an employee benefit/pension plan under ERISA
Surplus linesHard-to-place or unusual risks written by non-admitted insurers; not backed by the state guaranty fund
Difference in Conditions (DIC)Broadens or fills gaps (often flood/earthquake) above or alongside a primary property policy

Key nuance: surplus lines business is placed with a non-admitted carrier only after a diligent search shows admitted markets will not write it, and the producer needs a separate surplus lines license. Because the carrier is non-admitted, claims are not protected by the state insurance guaranty association if the insurer becomes insolvent.

Test Your Knowledge

An employer has a manual (base) workers' compensation premium of $80,000 and an experience modification factor of 1.15. What does the 1.15 mod indicate, and what is the modified premium?

A
B
C
D