Teen on computer (IMAGE) University of South Australia Caption One in four children (aged 8-12 years) and one in two teenagers (aged 13-17 years) have talked to a stranger online, Credit Unsplash - @christinhumephoto Usage Restrictions No restrictions. License CC0 Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.