Customers were out of luck for 11 days in April if they wanted to make online reservations for summer camping or outdoors classes in the west metro parks of the Three Rivers Park District.
Part of the district's computer system was shut down after its security system was breached and hackers accessed 82,000 user names and passwords.
Last week the Three Rivers board took the first step toward what will be a $3 million replacement of most of the computer system.
It voted unanimously to spend $700,000 in emergency funds to increase network capacity and sign a new licensing agreement with Microsoft.
"It's one of those vital infrastructure pieces that we really have to have, to do business in the modern world," said Boe Carlson, the district's associate superintendent of administration.
Commissioners differed on whether the remaining $2.3 million cost should come from general funds or through short-term bond sales. That will be decided later this year.
Carlson said that 80 percent of the registrations for dozens of programs -- everything from camping and golf reservations to horseback riding and butterfly collecting -- are done online.
"Folks really rely on technology for almost everything, including their recreation, and we've got to be able to support that," he said.