New AI-powered browsers from OpenAI, Perplexity, and others promise to automate Web tasks but are vulnerable to prompt injection attacks that could manipulate the browser or steal private information through hidden instructions. While they are intriguing for occasional experiments, stick with your current browser for everyday usage.

Can a browser that navigates the Web for you handle basic data analysis without making mistakes? Adam Engst tested Brave, ChatGPT Atlas, Comet, Dia, and Edge on a straightforward task of counting minors in three event registration lists. Only one succeeded, and the results were… educational.