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Table 11 Measurement items

From: Predicting individuals’ vulnerability to social engineering in social networks

Construct Dimensions Questions Measurement items
Perceived Risk Severity of threat • Please choose the best answer in each statement that indicates the extent to which a statement is true for you: (from Strongly agree to Strongly disagree) • I believe that losing my data privacy while using Facebook would be a severe problem for me (ST2)
• I believe that having my messages and chats being seen or listened to in Facebook would be a severe problem for me (ST3)
• I believe that losing my financial information while using Facebook would be harmful for me (ST4)
Likelihood of threat • Answer the following questions according to your beliefs, attitudes, and experiences: (from Extremely Likely to Extremely Unlikely) • How likely is it for your financial information to be stolen in Facebook? (LT1)
• How likely is it that your identity can be stolen in Facebook? (LT2)
• How likely is it for your privacy to be invaded without your knowledge while using Facebook? (LT3)
Competence Security • Please choose the best answer in each statement that indicates the extent to which a statement is true for you: (from Strongly agree to Strongly disagree) • I use password for my Facebook account different from the passwords I use to access other sites (SA2)
• I use a specific new email for my Facebook account different from my personal or work email (SA4)
Privacy • Please choose the best answer in each statement that indicates the extent to which a statement is true for you: (from Strongly agree to Strongly disagree) • I don’t share personal information on Facebook such as birthdate, phone number, workplace or address (PA3)
• I don’t share my current or future location on Facebook for example, images for my current vacation, or plans for future vacation (PA4)
Self-efficacy • Please choose the best answer in each statement that indicates the extent to which a statement is true for you: (from Strongly agree to Strongly disagree) • I have the knowledge and the ability to secure my Facebook account by adjusting the account settings (SEF3)
• I have the ability to protect myself from any online threats while using Facebook (SEF4)
Past experience with cybercrime   • How often have you experienced or been a victim of the following incidents? (Rate each statement from always to never) • Identity theft (somebody stealing your personal data and impersonating you, e.g. Open SN account with your name, or Shopping under your name) (PE1_It)
• Phishing (Received emails fraudulently asking for money or personal details, including banking or payment information) (PE2_Ph)
• Online fraud where goods purchased were not delivered, counterfeit or not as advertised (PE3_OF)
• Harassment, cyber-bullying (Received Harassing messages, inappropriate comments, or other persistent behaviours that endangers your safety) (PE4_Har)
Trust Trust Provider • Please choose the best answer that indicates how much you agree with the following statements: (from Strongly agree to Strongly disagree) • Facebook is a trustworthy social network (TP1)
• I can count on Facebook to protect my privacy (TP2)
• I can count on Facebook to protect my personal information from unauthorized use (TP3)
Trust Members • Please choose the best answer that indicates how much you agree with the following statements: (from Strongly agree to Strongly disagree) • Facebook Members will not take advantage of others even when the opportunity arises (TM1)
• Facebook Members are truthful in dealing with one another (TM3)
• Facebook Members will always keep the promises they make to one another (TM4)
Motivation Hedonic • What are your main reasons of using social networks? (Rate each statement from Strongly agree to Strongly disagree) • To pass the time (HM1)
• Using social networks are enjoyable and entertaining (HM2)
Social • What are your main reasons of using social networks? (Rate each statement from Strongly agree to Strongly disagree) • To keep in touch with friends and family (SM1)
• To maintain my popularity and prestige among peers (SM3)