弄虚作假 (nòng xū zuò jiǎ): Deceive people by false appearances / practice deceit (verb/idiom) — Meaning & Stroke Order

This company practiced deceit in its financial reports and was ultimately severely penalized by the regulatory authorities.

Do you really think consumers won't notice if you deceive them about product quality?

He is an upright person who never practices deceit in his work, earning the trust of his colleagues.

We firmly oppose any form of deceit and must uphold fair competition in the market.