Drawing on interviews with civil society actors in the AIDS Service Organization (ASO) sector in Canada, this article explores how these actors contribute to shaping the illness identities of people living with HIV/AIDS in the shadow of efforts to criminalize exposure to HIV. While the biographically disruptive qualities associated with an HIV diagnosis have been addressed in the medical sociology literature, we turn our attention to the key role played by ASOs as interlocutors in this process. Paying specific attention to the intersection of processes of medicalization and criminalization, we ask how they are re-stigmatizing a condition that has shifted in the public consciousness from its earlier association with deviance and moral culpability. One important implication of our findings concerns the need to take greater account of how the illness identity and experience can be shaped by a 'biography of telling', of a renewed pressure to disclose intimate details of one's health status as a way to perform responsible practices of citizenship.