perplexity

AI

Comet’s AI Browser Faces Critical URL Attack as Polar Secures

Perplexity’s Comet browser is vulnerable to a single malicious link that can steal emails and calendars, while rival Polar raises $5.7 M to launch its own AI‑first browser.

AI

Meta AI joins Threads DMs as Perplexity powers Windows PCs

Meta embeds its AI chatbot in Threads DMs, Perplexity launches a Windows AI agent, ChatGPT blocks author imitation, and Gemini tweaks its UI.