The article deals with the diagnosis of the current state in relation to responsibility in the flexible area of cyberspace which is itself hard to define, in the context of security, especially its transsectoral informative part; Polish statutory, strategic and program solutions are presented in the light of EU standards. The study includes a review of threats (mainly information and ICT infrastructure) and their scopes (systemic, economic, socio-cultural) and addressees obliged to preventive and eradication activities (primarily public authorities, but also other, e.g. commercial entities or representatives operating on the market of information society); it also touches on the substantive and institutional cooperation issues at the European level.