Individuals working in security fields such as police and military are expected to be vigilant for potential threats. However, there is little data documenting whether individual differences exist and if they translate into greater social vigilance in daily life. This analysis compared social vigilance ratings by 48 men employed in police, security or military sectors compared to 98 men not in these fields. Participants completed the 10-item Social Vigilance Questionnaire in three measurement formats: as a survey measure, as an end of day assessment (EOD), and by ecological momentary assessment (EMA). Overall, men in security fields reported higher levels of total vigilance with the strength of the relationship stronger with greater measurement frequency, all Fs(1, 137) > 4.49, p<0.05. As expected, these behaviors were driven by greater vigilance for social threats. Surprisingly, men in security fields were also higher in self-vigilance (e.g., monitoring of self in social situations), e.g., EOD F(1, 133) = 10.94, p<0.001 and EMA F(1,137) = 10.32, p =0.002. These behavioral differences may represent an important pathway linking security careers to greater chronic disease risk.