The theme of the article focuses on cyber security. The research goal of this article is to present the activities of hacktivists. The article describes the activities of the popular hacktivist group - Anonymous. The research question is: what hacking tools and techniques are used in cyberspace? In order to answer this question, the history and activities of hacktivists have been researched. The article presents the characteristics of hacktivists and the methods of their activities. It also attempts to assess this phenomenon in terms of the opportunities and threats posed to citizens and state institutions. In cyberspace there are also activities that pose a threat to this term, these are: cyberterrorism and cybercrime. The feeling of impunity means that more and more people are actively working in cyberspace. Their undertakings may have different intentions - some are guided by the common goods, while others target their individual benefits e.g. wealths, as a target of cyberattacks. Among cybercriminals there are hackers, hacktivists, crackers and cyberterrorists. Undoubtedly, cyberterrorism is a threat to the state, it destroys infrastructure and is a threat to people’s lives. This is a threat to the real reality. What is more, cybersecurity is also threatened by smaller, less harmful activities, such as: hacking attacks, hacking, data extraction, or by virusing websites. From this article it can be concluded that hacking activities are ambiguous and not always associated with a danger to the state and citizens. The results of the analysis indicate that hackers very often care about the public good and oppose the violation of rights and freedoms. However, it should be borne in mind that not all act in the same way and it is not known how much our future may be at risk.