The increasing presence of young people on the Nigerian streets participating in child labour has continued to attract public policy attention. Available research on child labour reveals sparse scholarly information on the security implications for young people in South-West Nigeria, particularly Ondo State. The study aims to understand the argument that child labour poses major security threats to the overall well-being of child labourers. A total of 147 questionnaires were distributed, with 12 focus group discussions and 12 semi-structured interviews conducted with young people and guardians (mostly mothers). Frequency distributions were employed to analyse the quantitative data, and NVivo (v.14) qualitative software was used to identify themes and sub-themes. A content analytical tool was used to make sense of the themes. Child labour activities include street trading, hawking, domestic help and construction work. Causes of child labour activities include lack of access to basic education, cultural and societal beliefs, poverty, and family breakdown, among others. Security threats include occasional kidnapping for ransom, sexual molestation, slavery, exploitation, risk of injury, diseases, and death. The study suggests a more responsive Child’s Rights Act in Nigeria for the protection of the rights and dignity of every child.