The US, Singapore and Taiwan have all looked at Alice Huang or her company Megaspeed; here’s what each investigation covers

One Chinese businesswoman, three countries and a growing national security controversy. Alice Huang has drawn scrutiny in the US, Singapore and Taiwan over her alleged links to Beijing and her former company, Megaspeed. But each country's role is different. While US authorities have examined suspected Chinese intelligence links, Singapore is investigating Megaspeed, and Taiwan's reported inquiry centres on her alleged connections to China.