About me | In the Head of the Network Administrator

Once I have launched my own company, PATRON-IT s.r.o., my hands were freed, so I can focus on IT security. I believe that to properly secure the network, I must first be able to break it.

I have been hacking (ethically) for years, so I would be able to protect customers from hackers today. I’m SME professional, which will make your IT more efficient by tens percent, secure your network and ultimately save you money (for downtime and ransom, it’s that simple).

Field overlap is one of my competitive advantages, that allows me to manage unsolvable IT problems. In addition to IT security, I also have a deep understanding of networks, systems management, programming, automation. As I manage my own business, I can design solutions that are sustainable both financially and process-wise. I am also able to transfer the knowledge in a meaningful way thanks to the lectures.

I have gained a lot of knowledge during my professional “adolescence” from the Internet IT community. Therefore, I would now like to contribute my two cents (via this blog) and perhaps even help someone. On this blog, I share corporate know-how, ideas, and practical insights. When evaluating articles, please keep in mind that I come from IT outsourcing, so I write from the perspective of an external IT administrator. We take care of dozens of isolated autonomous networks as external administrators, and we cannot use some of the tools and procedures applied by internal administrators. This is sometimes an advantage (we understand a wide range of technologies) and sometimes a disadvantage (we can’t tune the network to the last detail). I will gladly review any comments regarding the articles.

You can find my CV on

Conferences / Talks

2024 – Global Admin Days: TBD [EN], Warsaw, Poland
2024 – FIBEP World Media Intelligence Congress: Ransomware Cyberattacks: How to protect yourself [EN], Lemesos, Cyprus
2024 – PraSec: TBD [EN], Prague, Czech Republic
2024 – HackerFest: Microsoft Entra ID: Šest stupňů odloučení [CZ], Prague, Czech Republic
2024 – Troopers: Microsoft Entra ID: Overlooked Risks of Enterprise Applications [EN], Heidelberg, Germany
2024 – Cyb3r Days: Miskonfigurace aplikací v Entra ID [CZ], Prague, Czech Republic
2024 – Digitální transformace: Digitální transformace na straně kyberzločinců [CZ], Prague, Czech Republic
2024 – TD Synnex webinar: Jak na delegovanou správu Office/Microsoft 365 [CZ], online
2024 – CIO Agenda: Jak AI mění tvář kyberzločinu [CZ], Prague, Czech Republic
2023 – Zebra systems Cyber Roadshow: Když méně je více [CZ], Prague, Czech Republic
2023 – Procurement Forum: BEC: Jak zaplatit za nic [CZ], Prague, Czech Republic
2023 – HackerFest: MS Entra ID: Enterprise Applications [CZ], Prague, Czech Republic
2023 – Dell: Jakých bylo posledních 12 měsíců v kybernetické bezpečnosti [CZ], Prague, Czech Republic
2023 – Cyb3r Days: Nepřenášejme chyby z AD do AAD [CZ], Prague Czech Republic
2023 – CIO Agenda: BEC – Když vaše účetní pošle několik set tisíc na špatný účet [CZ], Prague Czech Republic
2022 – Zaměstnavatel roku: Kybernetická bezpečnost a vliv lidského faktoru [CZ], Prague, Czech Republic
2022 – KyberSoutěž: Vše co jste chtěli vědět o DDoS útocích [CZ], Plzeň, Czech Republic
2022 – HackerFest: Prohlížeče ve službách útočníků [CZ], Prague, Czech Republic
2022 – Dell webinář: Proč je obnova po ransomware utrpení [CZ], online
2022 – CyberCon: Teorie vs. praxe – naše postřehy z auditů [CZ], Brno, Czech Republic
2022 – Cyb3r Days: Jak čtu výstupy z bezpečnostních technologií [CZ], Prague, Czech Republic
2022 – CIO Agenda: Krizové řízení při ransomware útoku [CZ], Prague, Czech Republic
2022 – Kyberbezpečnost dnes a zítra pro neziskovky: Wi-fi router, tiskárna, scanner… Také potřebují aktualizovat [CZ], online
2021 – Cyber Security: Jak útočníci pronikají skrze vícefaktorové ověřování [CZ], Prague, Czech Republic
2021 – HackerFest: 2FA/MFA očima kyberzločinců [CZ], online
2021 – Cyb3r Days: NGFW VS. Hackeři [CZ], Prague, Czech Republic
2021 – Amenit Days: Jak správci IT podceňují schopnosti útočníků [CZ], Nový Jíčín, Czech Republic
2020 – Cyber Security: Příběhy z “bitevního pole” s kyberzločinci [CZ], online
2020 – HackerFest: Zálohy, co nepřežijí ransomware [CZ], online
2020 – Amenit Days: Lateral movement [CZ], Nový Jíčín, Czech Republic
2019 – HackerFest SK: Co antivirus nevidí, IT správce se nedozví [CZ], Bratislava, Slovak Republic
2019 – HackerFest: Co antivirus nevidí, IT správce se nedozví [CZ], Prague, Czech Republic
2019 – Cyb3r Days: Lateral movement [CZ], Prague, Czech Republic
2019 – Impact Hub Share: IT bezpečnost pro freelancery a malé firmy [CZ], Brno, Czech Republic
2019 – Barcamp HK: Pojďme si spolu hacknout IP kameru [CZ] Hradec Králové, Czech Republic
2019 – Barcamp Brno: Pojďme společně hacknout server [CZ]
2019 – Credit Matters VIII: The Hacker’s cookbook [EN], Brno, Czech Republic
2018 – Barcamp HK: Nebezpečí přichází skrze USB [CZ], Hradec Králové, Czech Republic
2018 – HackerFest: Plug and Pray [CZ] Prague, Czech Republic