dishonest or illegal activity
malfeasance - wrongdoing
In the English language, the prefix ‘mal’ denotes something bad, and that is the case with ‘malfeasance’. It refers to a particular kind of misconduct or illicit activity, typically carried out by an organization, public official, or person in authority. The word is most commonly used in a professional context, particularly in relation to the law or business practices.
The high-profile lawyer is currently being investigated for malpractice and malfeasance.
After the newspaper unearthed evidence of corporate malfeasance, the company’s CEO resigned from her position.
The local official’s embezzling of funds was a malfeasant act that should not go unpunished.