Anthropic has warned that three Chinese artificial‑intelligence firms—DeepSeek, Moonshot and MiniMax—conducted large‑scale campaigns to illicitly extract capabilities from its Claude chatbot. The company says the firms used roughly 24,000 fraudulent accounts to generate more than 16 million exchanges, effectively using Claude as a shortcut to improve their own models. Anthropic cited IP address data, metadata requests and infrastructure clues to link the activity to the companies with high confidence. The firm plans to upgrade its systems to make such attacks harder and easier to detect, while noting similar concerns raised previously by OpenAI. Read more →