Police are concerned isolation, financial stress and declining mental health during the coronavirus pandemic may lead to an increase in domestic violence.
Wodonga Inspector Paul Hargreaves said police hadn't seen a rise in incidents yet, but several concerning risk factors emerged as people self-isolate.
"People are always around each other which may be a change in the family pattern, possibly with added financial stress which they may be suffering with," he said.
"There can be issues with custody of children and how that works, which might have some limitations which can cause some aggravation.
"Our advice is that we are still working and we'll be encouraging people to reach out, ask for help.
"Don't suffer in silence.
"We are still receiving reports of family violence and are investigating them."
Inspector Hargreaves said police were focused on the issue and working with other agencies.
"We encourage people to report it early," he said.
"Equally, if neighbours or friends have some concerns, suspicions or information, we would be very keen to hear from them."
Trauma surgeons recently said the availability of alcohol during the pandemic would result in more women attending emergency departments with domestic violence-related injuries.
NSW-based Women's Community Shelters reported a 25 to 30 per cent increase in calls for assistance in two weeks.
Officers are also urging parents to monitor their children's internet habits as they spend more time online.
Wangaratta sex offence unit Detective Sergeant Shannon Murphy said parents needed to know who their children were chatting to online.
"They need to proactively speak to their children about it," he said.
"It's beneficial if you can create a relationship with you kids so that they feel comfortable coming to you, and telling you what they've been doing online.
"Because there are so many platforms, it's very hard for some parents to understand the complexities of some apps."
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NSW Detective Superintendent John Kerlatec said internet usage has already increased.
School holidays start in NSW on Friday, which the detective said would also add to the number of children online.
Learning has moved online in recent weeks.
"While online activities can include accessing education material, we are encouraging parents to remain vigilant and monitor their usage, including what websites they are visiting, and who they may be speaking with," he said.
"Not only should young people be very careful about providing personal information details to a person they only know in an online environment, they should never organise to meet, as doing so may place them at further risk of harm.
"If they encounter something or someone they are not comfortable with, we encourage them to speak to a person they trust, who can then let our investigators know."
NSW Police and Emergency Services Minister David Elliott said police were ready to respond to any online crime.
"We are in the midst of a pandemic, and as a government we don't want to add to the fear in the community, but we need to ensure children who are attending school online are not being exposed to this insipid risk," he said.
"While we have seen most of the community band together to work through these difficult times, I'm sickened by the thought of predators using a crisis to exploit our most vulnerable."
Detective Sergeant Murphy said children as young as five were exposed to social media.
"I would say children are quite vulnerable, simply because of their naivety and the potential for them to be interacting with an adult on the other end who is claiming to be a child," he said.
"There are some good examples of children who have broached the topic of nuisance or illegal material online and go to their parents, who in turn go to police.
"I think with the right measures in place, we can ensure children don't become exposed to any vulnerable activity online."