Candida albicans is a fungus that causes infections in humans. The fungus has developed a clever way to hide from our immune system by covering up a molecule on its surface called β-1,3-glucan that normally triggers immune responses. This study shows that the fungus masks this molecule through a combination of growing and dividing to create new surfaces, and then using enzymes to trim away exposed molecules. The research reveals that a specific cell signaling pathway controlled by lactate (a chemical found in our bodies) activates this masking behavior, helping the fungus evade immune recognition.