What is a 'defensive briefing,' and why didn't Nvidia CEO Jensen Huang get one while US agencies were watching Alice Huang?

Nvidia CEO Jensen Huang recently admitted that he was unfaithful to his wife. According to US media reports, Huang had a close relationship with alleged Chinese spy Alice Huang. It was also reported that Alice had been under surveillance by US intelligence agencies. Meanwhile, NVIDIA opened an independent investigation, which will be overseen by a committee of independent directors in the case. They will reportedly be assisted by outside legal counsel.

According to The New York Times, US intelligence determined Alice Huang developed a relationship with the Nvidia CEO. It was also reported that she had been recruited by China’s Ministry of State Security to collect intelligence on him. The alleged operation was conducted to get information about American AI chips. However, the Chinese government issued a statement and said the claims are nothing more than a "smear intended to malign China."

According to a Newsweek report, Jensen Huang did not get a defensive briefing from US officials warning that he could be targeted by a foreign intelligence service. This has raised many questions as to why he was not warned by American authorities despite being one of the country's most influential technology executives.

What is a defensive briefing?

A defensive briefing is reportedly a formal warning from US intelligence agencies to someone who may be getting targeted by a foreign government or intelligence service. The purpose is to brief the person about potential espionage attempts, or efforts to get confidential information.

The person can also be advised to protect sensitive business, personal or government information. However, warning that person may also alert the suspected spy and compromise an ongoing investigation.

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The reason why Jensen Huang may not have been briefed about could have been that it would have alerted Alice Huang that she was under surveillance. This could have compromised the ongoing investigation and the suspect may have changed her methods.

When did they first meet?

It still remains unclear when Alice Huang first met Nvidia CEO Jensen Huang. It also remains uncertain how long their affair lasted. But, according to media reports, she was first photographed sitting with him in June 2024 at a bar in Taipei. Both were seen drinking with executives from Gigabyte and NetThunder. Megaspeed had also begun a multibillion-dollar purchase of advanced AI microchips at that time, according to a New York Times report.