On September 11, 2026, a netizen posted on a social platform stating that when using the university learning software “Zhidao”, even after closing the app and clearing the background, after turning on VPN a prompt “VPN environment detected, please adjust network” still appears. The netizen worries this prompt could be monitored by the school and affect credits or graduation. Zhidao belongs to Zhihui Tree Net, and its privacy policy effective from July 1, 2025 states that the platform will collect device identifiers and IP in the background, and may provide abnormal learning behavior data to the school after school authorization.