Insurers are eagerly eyeing exponential growth in the tiny cyber coverage market. But their lack of experience and skills handling hackers and data breaches may keep their ambitions in check.

High profile cases of hackers seizing sensitive customer data from companies, such as US retailer Target Corp or e-commerce company eBay Inc, have executives checking their insurance policies.

Increasingly, corporate risk managers are seeing insurance against cyber crime as necessary budget spending rather than just nice to have.