The article reviews the growing challenge posed by the increasing prevalence of antibiotic-resistant bacteria, with a focus on *Acinetobacter baumannii*. This bacterium is particularly concerning due to its widespread presence in hospitals, resistance to treatment, and association with high mortality rates. The review highlights recent research on the ecological niches, microbiological traits, and antibiotic resistance profiles of *A. baumannii*. It reveals that the bacterium has been found in various environmental niches, including rivers, treatment plants, soils, and food sources such as meat and vegetables. The presence of *A. baumannii* in these non-hospital settings indicates a significant risk of environmental contamination and highlights the need for greater awareness and preventive measures to address this potential threat to public health. The article also discusses the bacterium's virulence factors, such as biofilm formation, and its ability to acquire new resistance genes, making it a serious public health concern. The review concludes by emphasizing the importance of continued research and surveillance to understand and mitigate the spread of *A. baumannii* in diverse habitats.The article reviews the growing challenge posed by the increasing prevalence of antibiotic-resistant bacteria, with a focus on *Acinetobacter baumannii*. This bacterium is particularly concerning due to its widespread presence in hospitals, resistance to treatment, and association with high mortality rates. The review highlights recent research on the ecological niches, microbiological traits, and antibiotic resistance profiles of *A. baumannii*. It reveals that the bacterium has been found in various environmental niches, including rivers, treatment plants, soils, and food sources such as meat and vegetables. The presence of *A. baumannii* in these non-hospital settings indicates a significant risk of environmental contamination and highlights the need for greater awareness and preventive measures to address this potential threat to public health. The article also discusses the bacterium's virulence factors, such as biofilm formation, and its ability to acquire new resistance genes, making it a serious public health concern. The review concludes by emphasizing the importance of continued research and surveillance to understand and mitigate the spread of *A. baumannii* in diverse habitats.