TikTok's ties to China are under scrutiny once again as Biden weighs new rules for foreign apps 9 minutes ago | By VCG/VCG via Getty Images. The Biden administration is considering new rules for apps it views as a potential security risk. It's proposing new requirements for companies like TikTok that have ties to a "foreign adversary." Apps under review could be required to submit source code and other data to a third-party auditor. The Biden administration is reviewing comments on a proposed rule change that would grant the government greater oversight over apps that it deems a national security…