The means of conducting hybrid warfare are rapidly changing. IoT is a recent sphere of activity, opening new opportunities for hybrid influence. Consisting of three main building blocks, IoT inherits all security problem specific to each one of them and introduces some new ones. This article describes in brief the main issues concerning security in IoT and ways of using it for creating hybrid threats. All of the described problems can be used for escalation in different areas. The article presents also a simple definition of what is a (relatively) secure IoT system and an original concept for reducing vulnerabilities in the IoT environment.