The author attempts to explore the threat as a speech genre of verbal aggression. It is argued that the threat is most often found in the texts of modern online-communication, the characteristics of which are close to a synthetic oral-written form of communication and the colloquial genre. It is emphasized that in modern studies the threat is researched from a legal and linguistic point of view. The author proves the idea that there are two main types of threat statements – a threat-warning, including a causal action, and a threatpunishment.