One quarter of primary age children and 40 per cent of secondary age pupils in Ireland have experienced cyberbullying.
The latest report from CyberSafeKids shows girls are more likely than boys to be victimised online, with the posting of pictures without permission, creation of fake social media profiles and exclusion from chat groups the most commonly experienced forms of online abuse.
93 percent of 8 to 12 year olds have access to a smart device with 31 percent saying that they are allowed to go online whenever they like.
CEO of CyberSafeKids Alex Cooney says some parents are taking action by limiting how much time their children spend on phones and tablets.
"Online safety for children remains a critical issue that is not being sufficiently addressed in Ireland’s education system or by the social media companies whose platforms are being used," she said.
"Our data shows children are extremely active on social media, often unsupervised, leaving them highly vulnerable to bullying, grooming, and exposure to violent or sexual content. We've been reporting on these patterns for the past seven years, but not enough is being done.
"We urge the Government to invest heavily in more resources and campaigns to support both parents and educators. Whilst organisations like CyberSafeKids barely have the funding to survive, many online service providers report annual profits in the billions."
