On the other hand, unethical refers to behaviors that go against accepted norms of morality. Such actions can lead to serious consequences, such as lawsuits against the individual and in extreme cases, even criminal penalties for more serious offenses like fraudulence and bribery.

Unethical practices can involve activities such as deception for personal gains, taking advantage of vulnerable people in society (such as elderly people), discrimination against particular groups due to their social status or skin color, piracy, or stealing intellectual work without permission. These practices destroy the justice system and bring about a great deal of disappointment among those affected by unethical behavior since most would expect fair practices when dealing with one another.

More info: What is IT Service Management (ITSM)