For decades, certain tumors have evaded the immune system by remaining silent — what oncologists call 'cold' — rendering even the most advanced immunotherapies ineffective. A new review in the journal Ferroptosis and Oxidative Stress illuminates a protein called ZBP1, originally known as a viral sentinel, that may compel these hidden tumors to announce themselves through a form of inflammatory cell death called necroptosis. When ZBP1 detects the genomic distortions that accumulate inside stressed cancer cells, it initiates a chain reaction that ruptures those cells and floods the surrounding t