Chinese hackers impersonated ex-US official to steal emails from AI experts

WASHINGTON — Chinese hackers have been impersonating U.S. AI experts, including a former government official, ​to try to steal emails from experts in AI at think tanks, universities, and other organizations, the cybersecurity company Proofpoint said on Thursday.

In a report, Proofpoint said that it had ‌watched the hackers, which it dubs "TA419," regularly try to steal passwords from people working for US or Japanese think tanks, defense contractors, universities, ⁠and law firms since as far back as ​2025.

Proofpoint attributed the hacking efforts to the Chinese ⁠group based on the types of malware the group used, the internet infrastructure used to carry out ‌the attacks, and the ‌targets it observed the group focusing on, which align with Chinese intelligence collection priorities.

Proofpoint said ⁠the hackers' recent campaign involved writing emails purporting to come ⁠from experts in AI or statecraft, including Lynne Parker, who previously worked as the principal deputy director of the White House's Office of Science and Technology Policy. Proofpoint said the emails would typically propose AI-themed collaborations or initiatives before steering targets toward password-stealing websites.

The Chinese Embassy in Washington did not immediately return a message seeking comment. Beijing has long denied carrying out cyberespionage operations.

Proofpoint ‌declined to name the hackers' targets, saying only that the latter included "experts ​working on AI regulation, export controls and national AI strategy."

Reuters was independently able to identify one of them: Alex Engler, a former White House official who now heads the Penn Center on Media, Technology, and Democracy.

Engler told Reuters on Wednesday he had received an email appearing to come from Parker inviting him "to join a new AI policy project." But he said the email "felt slightly, nebulously off" and, after he checked with others in the field, he realized he was dealing with an impostor.

Engler ​said he could not speculate about why someone would try to hack him, but Proofpoint said that its view of the ‌targeting — which involved ‌fewer than 10 ⁠individuals working for a handful of organizations — suggested "an intelligence interest in U.S. policymaking rather than technology theft alone."

Parker told Reuters that Engler was one of two people who received suspicious messages purporting to come from her in early July. She added that the allegation of Chinese involvement made sense.

"The United States and China are in a ‌competition around AI," Parker said. "Trying to ​get people in the AI policy space to reveal information ‌about their AI policy plans — ⁠if that indeed ​was what the objective was — it's not surprising."

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