China-Aligned TA419 Targets U.S. AI Policy Experts With Microsoft AitM Phishing

China-aligned cyber espionage group TA419 has been attributed to credential phishing campaigns targeting US AI policy experts at think tanks, universities, and legal organizations. The attackers impersonated economists, AI policymakers, and an Anthropic employee to deceive victims. The campaigns aim to steal credentials from individuals involved in AI policy development, posing a significant national security risk.