Teresa Sofia Castro is a Professor and Research Assistant at Universidade Lusófona (she achieved 1st place in the Communication area in the FCT CEEC 2022). She is a researcher interested in children's (0-18) digital lives (uses, risks, skills, and opportunities), digital parenting and mediation, digital citizenship, ethics in research, innovative methodologies and participatory-action research. She has experience doing research with children and families with different socio-economic and cultural backgrounds and settings. She did a Post-Doc (1st place award funded by the Foundation for Science and Technology-FCT in 2017), with the supervision of Cristina Ponte (Universidade Nova de Lisboa) and Emma Bond (University of Suffolk, UK), in the field of Communication Sciences—Media and Cultural Studies (2017–2022). The longitudinal study iTech Families involves the participation of families with different social and living conditions based in Portugal and the UK. She holds a European PhD in Sciences of Education, Educational Technology (University of Minho). The research project, funded by FCT, resulted in the thesis: "It's a complicated situation. Harm in everyday experiences with technology. A qualitative study with school-aged children". Her analysis draws on contributions from the sociology of risk, childhood studies, science and technology, and aspects of critical criminology (zemiology). Teresa holds a Master's in Childhood Studies, specialising in Information and Communication Technologies (University of Minho), and a degree in Philosophy and Humanities (Portuguese Catholic University). She is an integrated researcher at CICANT (Universidade Lusófona); member of the research network EU Kids Online; collaborator in the Children and Adolescents Online (CriA.On) platform that aims to encourage dialogue with families and with education, health and welfare professionals, lawyers, and all those who work with children and families; member of the COST Action DigiLitEY: The Digital Literacy and Multimodal Practices of Young Children. Aware of the importance of contributing to children's and young people's digital literacies and citizenship, her research has been aligned with this goal in the educational materials she produces and the workshops and training she provides to young people, teachers, psychologists, and parents. She collaborates with the Portuguese Safer Internet Centre; Lusoinfo Multimedia; and Child Support Institute (IAC) in the writing of books for children and families, on the safe use of digital technologies (Alerta Premika! Online risk detected). She worked with young offenders on digital citizenship and digital rights in the national project: Dici-Educa- Educational centres with digital and civic competencies (Academies of Knowledge, Fundação Calouste Gulbenkian, coordinated by Maria José Brites, Universidade Lusófona - COFAC and CICANT). Presently, she is the Co-Pi of the FCT-funded project: Youth, News, and Digital Citizenship (YouNDigital), with M. J. Brites as PI. She also collaborates on the following European-funded projects: ySKILLS – funding AH2020; ASAP – funding E+; DIGcapabilities - FORSKER23. She did three international research internships (UK-University of Suffolk, Belgium - KU Leuven, and Italy - Università Cattolica of Milan) and has dozens of (inter)national publications, in peer-reviewed and indexed journals on the topics she investigates (digital uses, abuses and harms, digital citizenship and digital literacies, online violence, digital contents on pro-anorexia and self-harming produced by children, digital parenting and digital families, research and ethics ). From 2019 to 2022 she was appointed a Visiting Research Fellow at the University of Suffolk, UK.