Secrets, Context, and the RAG Illusion
Opening — Why this matters now Personalized AI assistants are rapidly becoming ambient infrastructure. They draft emails, recall old conversations, summarize private chats, and quietly stitch together our digital lives. The selling point is convenience. The hidden cost is context collapse. The paper behind this article introduces PrivacyBench, a benchmark designed to answer an uncomfortable but overdue question: when AI assistants know everything about us, can they be trusted to know when to stay silent? The short answer is no—not reliably, and not by accident. ...