November 8th & 9th, 2024
Love SeaGL and want to help out? Get Involved
This video recording is archived by the Internet Archive. If you value their service, please consider thanking them with a small donation.

Personal OSINT: How to safeguard your public data

SeaGL 2019


So, I have a profile online in { FACEBOOK, LINKEDIN, INSTAGRAM }. This data is already public. I also know that there have been past issues with data, but I’ve configured my accounts to only target the people I really want to see my stuff.

In any case, I’m already out there, have accepted the risk and have nothing to hide.

There are plenty of reasons you should care, and let me give you a hint – it’s not about what you actually post on these sites. It is much worse.

It’s about your email address.

This short talk will use open source tools to show how an investigator OR bad actor could use an email address to probe a target’s public information and use it for nefarious purposes.

From there, we will elaborate on ways said email address can be leveraged into higher levels of creepiness or invasion of privacy.

Attendees will come away with:

  • Awareness of how contact info should be guarded
  • Clues of how to fix past damage
  • Concrete guidance about how to act moving forward


Nadine Whitfield

Nadine Whitfield, ThoughtWorks

Polyglot developer with an eye towards security, automation and quality.