Domestic violence against women within the family is a very old act in society, it is a global phenomenon and has tragic implications not only for women's lives, but for society as a whole. The Covid-19 pandemic, announced in March 2020 by the World Health Organization (WHO), led to a considerable increase in cases of domestic violence against women. As cases rose, bulletin filings declined. Furthermore, the impact on violence is highlighted due to the need for women to remain in their homes longer due to the pandemic, further aggravating cases of violence and directly affecting the reduction in reports. Due to the high rates of domestic violence, the Red Signal against Domestic Violence cooperation program was created; The central idea is that women can ask for help in pharmacies, public agencies and bank branches with a red sign drawn on the palm of their hand. Therefore, the research is based on the following problem: How have urgent protective measures and the Sinal Vermelho Cooperation Program contributed to the reduction of violence against women during social isolation? To resolve the problem, the article's central objective is to present how urgent protective measures and the Sinal Vermelho Cooperation Program have contributed to the reduction of violence against women during social isolation. The research also aims to address mechanisms capable of contributing to the reduction of domestic violence against women; Among these mechanisms, a bibliographic and historical study will be carried out on law 11,340/2006, better known as the Maria da Penha Law, with an emphasis on urgent protective measures, presenting its main advantages and criticisms, as well as Federal Law no. 14,188, of July 28, 2021, which defines the Red Light Cooperation Program against Domestic Violence provided for in Law 11,340/2006. It is noted that protective measures are important, and with the creation of the Red Signal Campaign, it is expected to achieve greater effectiveness and reach in protecting women and punishing the aggressor.