ByteDance Whistleblower Abused Judicial Process, Faked Evidence

A ByteDance Inc. whistleblower suing the Chinese tech conglomerate for wrongful firing engaged in bad faith conduct, abused the judicial system, and fabricated a key witness in the case, a San Francisco federal judge ruled Thursday.

Yintao “Roger” Yu, former head of US engineering for the TikTok Inc. parent, also committed perjury in his deposition by lying about whether he signed key documents in the case, Judge Susan Illston said in a sanctions order against Yu.

“Yu’s obstructive and mendacious conduct has caused delay, required additional motion practice, and vexatiously multiplied these proceedings,” the judge said. She pointed ...