This series of briefs draws on the findings of multi-country research based on first-hand migration experiences of 1,634 children and young people moving between Somalia, Ethiopia, Sudan and Egypt (available at www.unicef-irc.org/child-migration-hoa). The briefs highlight findings that can inform decision makers when designing child-sensitive solutions for children on the move (COM), in line with relevant objectives of the Global Compact for Safe, Orderly and Regular Migration (GCM). This third brief in the series presents vulnerability, discrimination and xenophobia. [For Brief 1, see ED620508. For Brief 2, see ED620510.]