Proofpoint: China-linked hackers posed as ex-US officials and Anthropic employee

Proofpoint uncovered phishing campaigns by a China-aligned group tracked as TA419 that impersonated former White House OSTP official Lynne Parker, former State Department economist Heidi Crebo-Rediker and a senior Anthropic employee to steal Microsoft credentials from AI policy experts. The attacks began July 8 and targeted researchers at think tanks, universities and law firms.

• Hackers invited experts to a fictitious "AI Policy Advisory Committee"
• Stolen Microsoft logins were harvested via a fake OneDrive page
• In February the group impersonated an Anthropic employee in a Claude email
• Proofpoint did not say how many targets or whether any accounts were breached