The radicalism that instills ideas of violence is the embryo of terrorism. Radicalism is an attitude that wants total change and is revolutionary by overturning existing values drastically through violence. Efforts to deal with repressive radicalism are often seen as an attempt by the authoritarian government and contrary to human rights. What the government is fighting is not self-criticism of the government, but ideas that carry the nature of hatred, and hostility and also call for violence that leads to terror. The approach used in tackling radicalism cannot only be repressive countermeasures. There must first be detailed identification so that law enforcement against the perpetrators of spreading radicalism is right on target and does not result in a boomerang for the government later. The assessment process is a process of assessing a person's radical level. This process will later become a clear action, because the perpetrators of radicalism in social media will be tested on how much exposure to radicalism has occurred to them, and this will determine whether later the perpetrators will be fostered into deradicalization boarding schools or through the criminal justice system.