The police squad tasked with catching child sex offenders says children are at greater risk of paedophiles during the lockdown.
"There will be some people who will see it as an opportunity and they'll probably try and take the opportunity," says Jason Abbott, from the police covert online team.
"That's why it's really important parents have those conversations with their kids when they're online."
And Netsafe says it's already seeing more reports of disturbing behaviour.
"We're seeing a bit more sexploitation, revenge porn, those kinds of things - the nasty end of our work," CEO Martin Cocker says.
It comes amid a rise in child sex offences during lockdowns in other countries.
British home secretary Priti Patel warned on Saturday that paedophiles and con-artists are exploiting the rise in internet use to their advantage.
Children are now at risk, says Patel.
''The perpetrators of sickening online child abuse are seeking to exploit the fact that more and more young people and children are at home and are online," she is quoted as saying by Reuters.
Scams have also risen and Patel says English people have been scammed out of more than £1.8 million.
Although crime has dropped by 21 percent since the lockdown began, domestic abuse cases have skyrocketed.
"In the last week the National Domestic Abuse Helpline reported a 120 percent increase in the number of calls it received in one 24-hour period.''
In the West Midlands, 400 people have been arrested for domestic abuse in the last two weeks.
Patel said the victims of domestic abuse must know they are not alone.
"For the victims of these crimes, home is not the safe haven that it should be and that is why I have been working with law enforcement, charities, schools, businesses and local councils.
"Our outstanding police will still be there for you."
England currently has 79,885 confirmed cases of coronavirus with 9892 deaths. So far 625 people have recovered from the virus.
What can you do to protect your kids?
Cocker says every family needs a plan.
"You know I'm not saying they'll come across lots of predators and offenders online, but there are a few so they need to know what to do," he says.
- Make agreements on what they can and can't do online
- Review and approve apps and games before they play them
- Check your children's social media profiles and see what they're posting online
Where to find help and support:
- Need to Talk? - Call or text 1737
- Lifeline - 0800 543 354 or (09) 5222 999 within Auckland
- Youthline - 0800 376 633, text 234, email talk@youthline.co.nz or online chat
- Samaritans - 0800 726 666
- Depression Helpline - 0800 111 757
- Suicide Crisis Helpline - 0508 828 865 (0508 TAUTOKO)
