Tā lìyòng zhíquán chōngdāng fēifǎ qǐyè de bǎohùsǎn.
He used his authority to act as a cover for illegal businesses.
Tips
usage
保护伞 literally means 'protective umbrella' and is frequently used in a figurative, often negative sense — referring to a powerful person or organization that shields criminals or corrupt actors from justice.
The fictional bioweapons corporation from the Resident Evil franchise, known in Chinese as 保护伞公司. The Chinese name perfectly mirrors the sinister 'protective' branding of the corporation.