President Donald Trump has talked with Chinese President Xi Jinping about Southeast Asian scam compounds, a State Department official told senators at a hearing on the transnational issue.

Three Chinese telecommunications giants continue to have footholds in the U.S. internet ecosystem despite their alleged role in previous Chinese hacking campaigns, a House committee report concluded.

A company based in Taiwan was leasing out accounts on the popular LINE messaging app to Chinese spies, according to prosecutors, who charged two men in the alleged scheme.

Britain has weakened proposed cybersecurity protections for its telecoms networks that were developed in response to the Salt Typhoon espionage campaign, after the companies responsible for implementing the measures lobbied against them.

On Tuesday, Zambia’s Minister of Technology and Science offered the first hint that the conference would be cancelled, telling a Zambian news outlet that participants’ security clearances were incomplete and that the government has concerns about the conference’s “dialogue.”

The aim of the campaigns was to steal credentials and likely enable “follow-on operations in the interest of the Chinese government,” the report said.