Taiwan's government is investigating a Chinese businesswoman linked to Nvidia CEO Jensen Huang over suspected spying, a story that's awkward for Nvidia but mainly a political and security headache for Taipei.

• The woman, identified as Huang Le, reportedly had an affair with Nvidia's Jensen Huang and has entered Taiwan multiple times on a Hong Kong passport.
• Taiwan's immigration agency says it already revoked her entry permit and is blocking her from re-entering, working with national security agencies.
• The government is keeping investigation details secret because it involves international cooperation and an ongoing criminal probe.
• Officials say Taiwan already screens Chinese nationals entering on business visas through joint security reviews, and will open a national security probe and cancel entry permits if spying is confirmed.

Outlook: Expect few new public details as the cross-border investigation continues, with Taiwanese officials stressing existing security screening is working as intended.