## 2 Related Works
### Personal Information Data
\begin{table}
\begin{tabular}{c c c} \hline \multicolumn{2}{c}{**Classification**} & \multicolumn{2}{c}{**Personal Information Items**} \\ \hline \multirow{3}{*}{Identity information} & \multirow{3}{*}{General information} & Full name, resident registration number, address, phone number, date of birth, place of birth, gender, etc. \\ \cline{2-3}  & & Family information & Family relations, family member information, etc. \\ \hline \multirow{3}{*}{Physical information} & Body information & Face, iris, voice, genetic information, fingerprints, height, weight, etc. \\ \cline{2-3}  & Medical and health & Medical conditions, medical history, physical disabilities, disability ratings, medical history, and physical exam information, such as blood type, IQ, and drug tests. \\ \hline \multirow{3}{*}{Mental information} & Preferences and disposition & Book and video rental records, magazine subscription information, purchase history, website browsing history, etc. \\ \cline{2-3}  & Inner secrets & Ideology, creed, religion, values, political party or union membership, activities, etc. \\ \hline \multirow{3}{*}{Social information} & Education & Education, grades, attendance, technical certifications and professional licenses, disciplinary records, student records, health records, etc. \\ \cline{2-3}  & Military service & Military service, number and rank, discharge type, military unit, specialties, etc. \\ \cline{2-3}  & Labor & Workplace, employer, place of employment, work history, reward and punishment records, job evaluation records, etc. \\ \cline{2-3}  & Legal information & Criminal records, court records, fines paid, etc. \\ \hline \multirow{3}{*}{Property information} & Income & Salary, bonuses and commissions, interest income, business income, etc. \\ \cline{2-3}  & Credit & Loan and security pledge history, credit card numbers, passbook account numbers, credit information, etc. \\ \cline{2-3}  & Real estate & Owned homes, land, cars, other vehicles, stores, buildings, etc. \\ \cline{2-3}  & Other revenues & Insurance (health, life, etc.), enrollment status, vacation, sick leave, etc. \\ \hline \multirow{3}{*}{Miscellaneous information} & Communication & Email addresses, phone calls, log files, cookies, etc. \\ \cline{2-3}  & Location & Location of individuals by GPS and mobile phone. \\ \cline{2-3}  & Habits and hobbies & Smoking, alcohol consumption, preferred sports and entertainment, leisure activities, gambling propensity, etc. \\ \hline \end{tabular}
\end{table} 
Table 1: The types of personal information classified by the privacy portal [25]. \begin{table}
\begin{tabular}{c c c} \hline
**Grade** & **Type** & **Personal Information Items** \\ \hline \multirow{8}{*}{Grade 1} & Unique identification information & Resident registration number, passport number, driver’s license number, and alien registration number. \\  & & Personal information is likely to result in a significant invasion of privacy, such as ideas, beliefs, membership in or withdrawal from a trade union or political party, political opinions, health, and sexual life. \\  & Sensitive information & Genetic information, criminal background information, medical history, physical and mental disabilities, sexual orientation, and disabilities (disability or not, disability class). \\ \cline{2-3}  & Authentication information & Passwords and biometrics (fingerprint, iris, vein, etc.). \\ \cline{2-3}  & Credit/financial information & Credit card numbers, account numbers, bank names, depository institutions, credit information, payment authorization numbers, loan balances and payment status, mortgages, late and missed payments, and records of wage garnishment notifications. \\ \cline{2-3}  & Location information & Personal location using GPS or mobile phone. \\ \hline \end{tabular}
\end{table} 
Table 2: The types of personal information according to the Personal Information Protection Commission’s guidelines (Grade 1) [26].