I'm Sean O'Brien, a cybersecurity researcher.

Short Bio: Sean O’Brien is Principal Researcher at the ExpressVPN Digital Security Lab. He is a Visiting Fellow at the Information Society Project at Yale Law School, where he founded and leads the Privacy Lab initiative. Sean is a former lecturer at Yale Law School (Cybersecurity LAW 20310) and was the head tutor for Oxford Cyber Security for Business Leaders. Sean is the privacy advisor for PanQuake as well as the founder and Executive Director of PrivacySafe Technology Foundation.

Digital Security Lab
SME in Cybersecurity, Privacy, and Digital Rights
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Featured Projects

ExpressVPN Digital Security Lab

Digital Security Lab

expressvpn.com/digital-security-lab
Research that aims to empower consumers with useful information about their privacy, security, and rights online.
Original Research

Cybersecurity (LAW 20310)

cyberlab.yale.edu
Development of unique, hands-on curriculum for Yale Law School. Kali Linux penetration testing, Raspberry Pis, and more.
Course Materials

Yale Privacy Lab

privacylab.yale.edu
Founder of this initiative of the Information Society Project. Forensic analysis of mobile apps, with press in 80+ international outlets.
Upcoming Events
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PrivacySafe hosts remote classes via a private and secure Learning Commons: https://privacysafe.tech

Sign up for a membership to attend classes. Learn more about PrivacySafe and my other projects in this interview.

9
years in higher education
90 +
Hands-on Tech Workshops
9
Years In Open Source (FOSS)

Joshua Gay, Open Source Community Manager at IEEE

★★★★★ 5/5

“Sean has distinguished himself as a leader within the Free Software community. He is capable of communicating about the Free Software movement and information technology because he is immersed in it. I have gained a deep appreciation for Sean’s knowledge in his roles as a developer, activist, and educator, as well as his ability to understand and think critically at many different levels and to communicate about difficult issues to people with diverse backgrounds.”

Digital Self-Defense Training

I show people how to be safe and aware while traversing the digital landscape. Learners must approach privacy and cybersecurity step-by-step, integrating strategies rather than relying on catch-all solutions.

Cyber Attack Demos

I want people to see cyber attacks first-hand so they can guard against them. My demonstrations contain safe, simplified examples of real-world attacks that are designed for audience interaction.

Schedule a Quick Call

Ban Face Surveillance!

Facial Recognition Technology (FRT) is a serious threat to privacy, autonomy, and freedom of expression. I am passionately opposed to Face Surveillance via FRT and am pursuing bans at Yale University and for the City of New Haven, Connecticut.