Imani Moise reports on the Open Secure AI Alliance, a coalition including NVIDIA and Microsoft formed to combat AI cyber threats after the OpenAI hack. China’s memory chip maker CXMT surged 400% on its Shanghai debut, challenging industry leaders SK Hynix and Samsung. Meanwhile, U.S. companies like Alphabet are reversing hiring freezes to support AI integration, driving jobless claims to their lowest level since 1969.