In today's age of the 4th Industrial Revolution, many physical resources are becoming digital. Technological growth and development are unstoppable and so powerful that it fundamentally changes people's lives. The extraordinary speed of change requires man to adapt to a new era of networking everything. The constant advancement of technology entails opportunities, but also dangers. The digital transformation of companies and individuals also implies radical changes in the way we do business. All of this exposes people to significant cybersecurity risks. However, not all individuals behave equally as risky in cybersecurity. Some people are more vulnerable than others, and personality traits play a significant role in that. This paper analyzes the relationship between personality traits and individuals' behaviour in cybersecurity. The answer to the main research question was sought: Is there a connection between certain personality traits of the respondents and their propensity for risky or less risky cybersecurity behaviour? The empirical research was conducted on a sample of 92 people who completed an online survey questionnaire containing 78 closed-ended questions. A weak negative correlation was found between conscientiousness and the overall score on the risky cybersecurity behaviour scale. Respondents who score higher in conscientiousness are less likely to engage in risky cybersecurity behaviour