A hacktivist group is a collective of individuals who use hacking techniques to promote political or social causes. These groups often target government websites, corporations, or organizations they believe are acting unjustly. Their actions can include website defacements, data leaks, or denial-of-service attacks, all aimed at raising awareness or instigating change. One of the most well-known hacktivist groups is Anonymous, which has been involved in various high-profile campaigns. Hacktivism raises ethical questions about the balance between freedom of expression and the legality of cyber actions, making it a controversial topic in discussions about cybersecurity and digital rights.