👉 The term "evilsayer" is a term used in computer security to describe an attacker who attempts to manipulate data or systems. An "evilsayer" can be an individual, such as a hacker, or it can also refer to a group of individuals or organizations that operate together to attack a target or system. The term was coined by the United States government and is often used in the context of cyber attacks on government agencies and other critical systems.