Scientists discovered that a common soil bacterium called Acidovorax citrulli has a sophisticated weapon to fight dangerous fungi. This bacterium uses a needle-like structure to inject a toxic protein called TseN directly into fungal cells, where it damages the fungal DNA and causes death. This new discovery is particularly exciting because it works against drug-resistant fungi like Candida auris that are increasingly hard to treat. Tests in mice confirmed that this bacterial attack significantly reduces fungal infections on skin.