Around 27 per cent of children are subjected to unwanted interactions via mobile phones or the internet – including grooming for the exchange of inappropriate images, the report estimates.
The research into abuse facilitated by technology says more girls than boys are affected by this type of sexual abuse, with 38.6 per cent of females and 19 per cent of males affected before turning 18.
In the past year alone, it is estimated to have affected nearly 7 per cent of children – 7.4 per cent of girls and 5.3 per cent of boys.
Childlight also estimates nearly 1 in 10 children can expect to face sexual extortion, a form of blackmail that involves threatening to share intimate images or videos online.
It added that a report in 2024 found more than 130 million children experienced abuse offline.
Public health priority
The report is one of the first to include global data on so-called ‘paedophile manuals’ or guidance materials for abusers on how to access and harm children and obtain child abuse material – and evade justice.
The research highlighted evidence of the manuals on more than 1,500 devices across more than 60 countries.
The new Into the Light Data Update report, launched at the World Health Assembly in Geneva, calls on governments to recognise child sexual abuse as an urgent public health priority, with health ministers given a central prevention role.
The report also calls on governments to properly count the problem and put greater efforts into prevention.