Nowadays, the rapid development of digital technology poses changes in the face of the global maritime industry. Modern technologies such as clouds, big data, smart devices, the internet of things and virtual reality enabled e-navigations, smart ports, unmanned guided vehicles on terminals and automated vessels. On one side, these technologies have become crucial and beneficial in terms of efficient operations, reducing carbon emissions, safety and protection of a ship, crew, cargo and the marine environment. On the other, the increased digitalisation causes cyber threats which resulted different attacks, in the range from unauthorized data access to malicious attacks on shipboard systems and networks. The potential impact of such malicious actions can have significant consequences for staff on board and ashore, passengers, as well as, on the environment. In this paper the threats that make a ship vulnerable to cyber-threats were identified. Also, the overview of the most significant cyber incidents in shipping was presented. The purpose of this paper is to raise awareness of cyber risks of the ship as well as the necessity of education about a new form of security threat affecting the maritime industry.