Continuing technological advances is making it more difficult to keep people safe.

The latest in "deep fake" technology is DeepNude - an app that uses AI to transform an image of a clothed woman into a realistic rendering of what she might look like naked.

DeepNude surged in popularity after being covered by Vice last week, swamping its anonymous creator's servers. It was soon offline, but not before a claimed half-million downloads.

The software's author initially promised it would be back online after a few days, but has now indicated it will be knocked on the head, posting "If 500,000 people use it, the probability that people will misuse it is too high. The world is not yet ready for DeepNude."

It is just the latest in a new wave of technology that blurs the lines between fiction and reality, and is making it harder for people to safely navigate the internet.

Netsafe CEO Martin Cocker joined Simon Barnett and Phil Gifford to talk about how people can avoid these apps and how parents can keep their children safe.