Daniel Krol.

About

I’m Daniel Krol.

Information Security Officer at PKP PLK S.A. One of Poland’s largest railway operators. 10+ years protecting critical infrastructure.

On the side, I help companies find what their AI tools are leaking and fix it before it becomes a headline.

Why I do this

Most security advice is generic. “Use MFA. Train your staff. Update your policies.” Fine. But it doesn’t tell you what’s actually happening inside your organization right now.

AI tools changed that. ChatGPT, Copilot, Gemini. Your team is using them with real data, right now, outside your security perimeter. Most companies have no idea what’s leaving.

I find it. I map it. I tell you exactly what to do about it.

How I think

My top CliftonStrengths: Learner · Input · Analytical · Focus · Belief.

In practice: I track what’s happening in AI and cybersecurity obsessively, connect dots others miss, and don’t stop until I have a specific answer. Not a generic framework.

Certifications

AI

  • AI Toolbox 2.0 Reloaded (December 2025) (certificate)
  • AI Toolbox (June 2025) (certificate)
  • AI for Parents: supporting kids’ education (September 2025) (certificate)
  • Hacking vs. Artificial Intelligence (June 2023) (certificate)

OSINT

Penetration testing

  • Penetration Test Planning (August 2025) (certificate)
  • Live Cold Boot Attack: how to decrypt a laptop (April 2024) (certificate)
  • Can Python Hack Everything (August 2023) (certificate)
  • Practical Wireshark (April 2023) (certificate)

Compliance & regulation

Awareness & fundamentals

  • Don’t Fall for Cyber Scammers (March 2023) (certificate)
  • Windows Security Basics (March 2023) (certificate)
  • Kids’ Online Safety (June 2023) (certificate)

Infrastructure

Events

  • Mega Sekurak Hacking Party (October 2025) (certificate)
  • Sekurak Cyberstarter (December 2024) (certificate)
  • Sekurak Cyberstarter Intro (December 2024) (certificate)

What I’ve built

  • KingDigest: cybersecurity & tech newsletter I founded and ran for years. Acquired in 2026.
  • The Dossier: my current weekly briefing on Shadow AI, data leaks, and digital sovereignty. Subscribe here.

Find me

See My Services