Opposition parties want the Government to look at our DHBs cyber security.

The Waikato DHB's computer system crashed last week after a ransomware attack from overseas.

Critics are now pointing fingers at the Ministry of Health, for ditching an effort to secure all DHB computer systems and a lack of funding.

National Party Deputy Leader Dr Shane Reti told The Weekend Collective this is a wake-up call.

"We're definitely up for a review to look at what we're doing, how we're doing, are we doing it appropriately, are we practicing at the best of scope?"

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