Agreeableness is the trait that implies cooperating, nurturing other individuals, and being helpful and considerate [17]. Prior meta-analytic evidence has demonstrated that agreeableness, like extraversion, is particularly relevant when performance involves interaction with other people [19]. Korukonda [32] demonstrated that agreeableness is negatively related to computer anxiety. Individuals high in agreeableness are sensitive towards other’s thoughts and opinions. Therefore, it is hypothesized that agreeable smartphone users will reveal themselves to use security measures when significant others think the same as they do. This leads to the assumption that agreeableness acts as a moderator of the relationship between subjective norm and intention to- wards the use of security measures.