Hunting and fishing licenses are on sale again in Washington state, after someone hacked or attempted to hack into an outside vendor's system, exposing several million records containing the personal information of hunters and anglers throughout the Northwest.

Washington halted all license sales after the intrusion was discovered last week, but resumed them Saturday through its network of 600 dealers across the state. Department of Fish and Wildlife spokesman Bruce Botka says online sales remain suspended because officials still can't ensure the internet system's security.

The vendor concerned is Dallas-based Active Network, which processes online license sales in several states.

Idaho and Oregon have also halted online sales of fishing and hunting licenses, but they allowed sales to continue at businesses and state offices.

The FBI and Department of Homeland Security are investigating.