Threat as the derminant of safety

Man’s life depends on many factors of social and biological character. Among numerous dangers lurking for one the majority is the side effect of human civilisation thus, it is strongly connected with human life activity, morality, pro and anti social attitudes and behaviours in all important parts of existence such as: culture, politics, science, economy. Some threats however cannot be unambiguously assign to human activity. The awareness that man is not able to set himself free from those threats, that they are included into human and environment nature, has become common. The author analysis the term ‘threat’ from different perspectives introducing the thesis that it implies adequate type of security.