'Informed' in the Bible

Then Haman informed King Ahasuerus, “There is one ethnic group, scattered throughout the peoples in every province of your kingdom, yet living in isolation. Their laws are different from everyone else’s and they do not obey the king’s laws. It is not in the king’s best interest to tolerate them.

They found the written report of how Mordecai had informed on Bigthana and Teresh, two eunuchs who guarded the king’s entrance, when they planned to assassinate King Ahasuerus.