In late April 2021, Viet Nam faced its fourth wave of COVID-19, with over 895 000 new cases reported. Between November and December 2021, the Food and Agriculture Organization of the United Nations (FAO) implemented an intervention in the context of the programme Scaling up Forecast-based Financing/ Early Warning Early Action (FbF/EWEA) and Shock Responsive Social Protection for disaster resilience in the Association of Southeast Asian Nations (ASEAN). This brief documents the intervention which aimed to help households affected by the COVID-19 pandemic and related restrictions to cover their basic needs, including households already benefiting from existing social assistance and non-beneficiary households. More specifically, it sought to improve food security and prevent vulnerable households from resorting to negative coping mechanisms.