Cyber Security
OSINT: How Much of Your Life Is Publicly Discoverable?
Open-source intelligence uses only public information, and it is usually enough to answer security questions about you.
CyberSafeTT · 5 November 2024 · 6 min read
OSINT is the practice of assembling public fragments into a profile. Investigators use it. So do social engineers building a convincing scam call.
What leaks without you noticing
- Reused usernames that link a professional profile to an anonymous one.
- Photo metadata and recognisable backgrounds that reveal home or school.
- Birthday posts, pet names and school names, the classic security answers.
- Public voter, company and property registries.
- Old breach data tying an email address to a phone number.
Reducing your exposure
- Use different usernames for different areas of life.
- Strip location data before uploading photos; delay holiday posts.
- Answer security questions with random strings stored in your password manager.
- Lock down friend lists and tagged photos.
- Re-run the search on yourself every few months.
Next step
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