The online spat erupted when Zhang, who runs the $16 billion‑valued payments platform, labeled Rabois’ repeated warnings about Airwallex’s vulnerability to Chinese Communist Party data requests as “unhinged conspiratorial rants”. Rabois, a board member of rival payments start‑up Ramp and a known Trump‑aligned investor, replied that Zhang might soon “plead the Fifth”, invoking the U.S. constitutional right against self‑incrimination. Zhang answered with a meme from the TV series *Mad Men*.
Rabois has long argued that Airwallex, founded in a Melbourne café 11 years ago and now domiciled in the Cayman Islands, could be compelled under U.S. law to provide American users’ data to Chinese authorities, effectively making the firm a conduit for espionage. He has repeated the claim in public posts and to U.S. lawmakers, suggesting the company’s Chinese ties pose a national‑security risk.
The controversy coincides with a formal investigation by Australia’s financial‑crimes regulator AUSTRAC, which in January ordered an external audit of Airwallex’s anti‑money‑laundering and counter‑terrorism‑financing controls. The audit, funded by the company, has put a planned 2026 NASDAQ listing on hold, although AUSTRAC’s report has not referenced China.
In Washington, the issue has reached Capitol Hill. A Republican‑controlled congressional committee warned Treasury Secretary Scott Bessent that Airwallex’s Chinese connections could compromise sensitive American data. Senator Tom Cotton echoed the concern in June, stating the firm “markets itself as an Australian company, but its ties to communist China run deep”. Zhang responded in a letter to the committee, emphasizing his personal background – born in China, immigrated to Australia at 15, and now a proud Australian citizen – and rejecting the insinuation of disloyalty.
Airwallex has sought to counter the criticism through a high‑profile public‑relations push. The firm hired former Australian treasurer Josh Frydenberg and ex‑U.S. senator Roy Blunt to its newly created economic advisory council, secured a partnership with Premier League club Arsenal, and launched a Spike Lee‑directed advertisement featuring Thierry Henry. It also bolstered its lobbying team in the United States, appointing Silicon Valley veteran Rachael Horwitz as senior vice‑president of global communications and former Biden‑era counter‑terrorism adviser Samantha Vinograd to oversee corporate affairs.
Despite the mounting scrutiny, Airwallex continues to attract investment, driving its valuation higher while it relocates staff away from China‑facing roles, according to the Financial Times. The ongoing AUSTRAC audit and U.S. political pressure have delayed the company’s IPO ambitions, but the firm’s leadership remains defiant, framing the attacks as bias against its founder’s heritage rather than substantive security concerns.