During the COVID-19 pandemic, cooperative banks in Poland undertook various CSR activities aimed at counteracting the effects of the crisis and protecting the interests of local communities. These banks showed commitment to local communities by providing financial support to local entrepreneurs and non-profit organizations that found themselves in a difficult situation. They allocated funds to support the medical sector by providing the necessary medical equipment, tests, and personal protective equipment for medical staff. CSR activities of cooperative banks had a significant impact on state security. By providing financial support to entrepreneurs and non-profit organizations, these banks contributed to maintaining jobs and economic stability. Support for the medical sector allowed for more effective management of the pandemic, providing appropriate protection measures and medical equipment for medical staff. The CSR activities of cooperative banks in Poland during the COVID-19 pandemic had a significant impact on state security. These banks were actively involved in helping local communities, supporting the medical sector, and conducting educational campaigns. Their involvement contributed to maintaining jobs, economic stability and increasing public awareness, which contributed to the overall security of the state during the difficult period of the COVID-19 pandemic. The article considers philanthropic projects carried out by a selected group of cooperatives, which are cooperative banks operating on the financial services market in Poland. The research problem is to understand what specific CSR activities undertaken by cooperative banks in Poland were aimed at supporting the local community and economy during the COVID-19 pandemic. The main purpose of this article is to indicate activities in the area of corporate social responsibility that were carried out by cooperative banks during the COVID-19 pandemic. To achieve the main objective, a source from the website of the National Association of Cooperative Banks was used and the literature on the subject was reviewed. The method that was used in the study was document analysis.