In response to increasing risks, insurers now offer cyber liability insurance. The product is particularly attractive to financial institutions and health care providers.
NAFCU renews call for congressional action while New York attorney general says probe is underway.
Trade group urges Congress to impose stricter rules, spread financial responsibility to retailers.
Trade group to open website next week to allow credit unions to report expenses they incur from massive hack.
State's credit union network reports activity by phone calls, emails and in-person contacts.
Trade groups call for tighter security, while credit unions monitor and warn.