List of Personally Identifiable Information (PII)

Personal information

Here is a non-exhaustive list of information that you should consider before revealing online or giving to companies.

Table Of Contents

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Personally Identifiable Information (PII)

  • Full Name
  • Email address
  • Home address
  • Data of Birth
  • Ethnicity / Race
  • Gender
  • National ID numbers / Social security number
  • Passport number
  • Visa permits number
  • Driver’s license number
  • Vehicle registration plate number
  • Disability information
  • Location information
  • What you are doing when / status
  • Events attended
  • Status
  • Sexual orientation
  • Education and employment history
  • Grades
  • Salary
  • Job position / title
  • Photos
  • Anything commercially sensitive
  • Political and religious leanings and affiliation
  • Views on controversial issues
  • History / background
  • Mother maiden name
  • Place of birth
  • Genetic information
  • Insurance details
  • Medical information
  • Criminal record
  • Credit score / record
  • Sites registered on


  • Work details – (Company name, address, colleagues)
  • Family members
  • Dependents
  • Spouses / Partners
  • Friends
  • Associates

Authentication Details

  • Usernames / Screen names / aliases
  • Email address
  • Passwords
  • Digital identity
  • Bio-metric data – Retina, face, fingerprints, handwriting
  • Security tokens
  • Password hashes
  • Cookies
  • Session information and tokens e.g. JSESSIONID

Mobile / Phones / Laptop / Devices

  • IMSI
  • Mobile number
  • Home phone number
  • Browser
  • GUID
  • Operating systems
  • IP address
  • MAC address
  • Hardware serials

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  • Nathan House

    Nathan House is the founder and CEO of StationX. He has over 25 years of experience in cyber security, where he has advised some of the largest companies in the world. Nathan is the author of the popular "The Complete Cyber Security Course", which has been taken by over half a million students in 195 countries. He is the winner of the AI "Cyber Security Educator of the Year 2020" award and finalist for Influencer of the year 2022.

  • keith barrett says:

    Is your “date of hire” for a Fed job considered PII?

  • Rob Malcolm says:

    Small correction, your mobile number is your MSISDN and so you have listed them separately. Also, I would include your IMEI as PII too.

  • Ian Hammond says:

    What is your definition of location information in this list?

    For instance, would historical GPS co-ordinates of a mobile device (without other details that identify the device itself) constitute PII?

    • Nathan House Nathan House says:

      It is important what I define as PII. It’s only important what any governing body/law/standard defines it as, that you might then have to conform to.

  • 영통 테크트리

    List of Personally Identifiable Information (PII)

  • Luminousbd post to a company blog

    List of Personally Identifiable Information (PII)

  • Muhammad Yousaf Hussain says:

    No not yet such information used

  • Tom Gaines says:

    I was trying to get a new phone service and the rep asked me for my Social Security number. I refused, telling her they didn’t need that information and their company lost my business.

  • Roberto says:

    Revealing your name on social media is biggest leak of PII.

  • Sankalp says:

    Hello , I’m aware of these pii’s which can be used for social engineering and different kinds of attacks and it’s not even possible to subscribe to any kind of services without login or signup. Its essential to keep track of fraud websites and difference between real and fake

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