According to the report, a litany of high-profile hedge funds, including Citadel and Two Sigma, were targeted by recent voice phishing, or “vishing,” attacks, in which AI is used to simulate the voices of actual humans in an attempt to skirt security systems. Two Sigma told Bloomberg it caught the attack in time before any of its internal systems were compromised. OpenAI’s latest voice model, GPT-Live-1, is engineered to imitate subtle nuances of human speech, and, in theory, make interacting with AI feel less awkwardly mechanical. This is all to say: Nobody should be surprised that vishing attacks are on the rise. The real mystery is why more isn’t being done to build actually effective safeguards into AI systems to prevent them from happening in the first place.