H3C's Lingxi AI Assistant inadvertently exposed API credentials for several cloud-based models for three months before revocation. The credentials, found in plaintext within the installer's code, included keys for Zhipu AI, Baidu Qianfan, and ByteDance's Volcano Engine. Despite being reported by users in January, H3C only revoked the credentials in early May. The delay in response is attributed to the shared use of API keys across multiple internal teams, complicating immediate revocation. Fortunately, the limited user base of the product prevented large-scale exploitation, avoiding potential financial losses.