It's become a matter of when - not if - New Zealand businesses suffer a cyber attack

New Zealand's Institute of Directors has issued a list of five issues companies can't ignore in 2020.

Chief executive Kirsten Patterson says more than a third of New Zealand businesses suffered a cyber attack or a data breach last year.

But she says only 50 percent of the boards they surveyed were keeping up to date with the latest info - and there's a lot more work to be done to stay safe.