The proposed study has three aims:
1. To refine a brief, stigma-informed digital micro-intervention designed to address structural and anticipated barriers to PrEP uptake among people who use drugs (PWUD) in Kazakhstan.
2. To assess the feasibility, acceptability, and appropriateness of delivering this intervention through secure digital platforms (e.g., Telegram or WhatsApp).
3. To evaluate preliminary changes in PrEP-related knowledge, perceived stigma- related barriers, and readiness to seek PrEP services following exposure to the intervention.