Dr Sandra Sanmartín Feijóo is a researcher on the Apps Against Abuse project and the FUSE Anti-Bullying and Online Safety Programme for schools. She has a Bachelor’s Degree in Psychology with a Master specializing in Social Psychology and another Master’s Degree in Methodology of Behavioural and Health Sciences. Her doctoral research “Problematic Internet use and online risky behaviours. An analysis from the gender perspective” at the University of Santiago de Compostela was funded by the Government of Galicia (Spain) through a competitive grant dedicated to pre-doctoral training. She has collaborated in several Spanish and international projects in the fields of addictions and bullying among adolescents.