Additionally, the insurance company has sued Mitsui Sumitomo Insurance, AIG and ACE asking the court to "clarify their responsibilities under policies" written for Sony.
Adds attorney Richard Bortnick, of a firm not involved with the case (via Retuers):
Zurich doesn't think there's coverage, but to the extent there may be a duty to defend it wants to make sure all of the insurers with a potential duty to defend are contributing.
The company plans to argue that the general liability insurance they wrote for the electronics company does not cover cyber attacks.
In April, a massive attack on the PSN managed to net hackers personal details on 100 million users. Sony has the attack will cost them $178 million this year and is looking for insurers to help pay.