Speaking

I Break Into Companies for a Living. Let Me Tell Your Audience What I Find.

Keynotes · Workshops · Private Briefings

Leon Johnson · Privacy Red Team Lead at TikTok · 20+ years in offensive security

Security talks that are equal parts edge-of-your-seat and actionable. No death by PowerPoint. Real stories, live demos, and takeaways your team can use Monday morning.

Leon Johnson

Watch a Recent Talk

Two recent panels on supply chain and AI security, alongside speakers from Red Hat, Thoughtworks, and the OWASP Global Board.

Software Supply Chains Under Pressure: Malware & AI Xygeni SafeDev Talk · 2026 · Panel Open Source, AI & The New Attack Surface Xygeni SafeDev Talk · 2025 · Panel

20+
Years in Offensive Security
20
Talks Given
12
Years on Stage
RSA
Plus BSides, Forrester, Rapid7 UNITED

What I Talk About

Each talk is tailored to your audience. These are starting points, not scripts. I also build custom CTFs and training programs from scratch.

01

How Attackers Use AI (And What Your Team Should Do About It)

AI is changing the speed and scale of attacks. I walk through real examples of AI-powered phishing, reconnaissance, and vulnerability discovery, drawing on my background in AI security research and the tools I build and use daily.

For: CISOs, Security Teams, Executive Leadership
02

AI-Powered Red Teaming: The New Offensive Playbook

How AI tools change the pen testing workflow. From automated recon to AI-assisted exploit development. Live demos of tools I've built and use in real engagements, informed by hundreds of pen tests across every assessment type.

For: Security Conferences, Red Teams, Pen Testers
03

Supply Chain Security: Open Source, AI, and What's Next

How attackers compromise the software you trust before it ever reaches your environment. I cover real supply chain attacks, the growing role of AI in both attacking and defending the pipeline, and what your team should be watching for.

For: DevSecOps, Engineering Leadership, CISOs
04

When the Pen Test Goes Sideways

The elevator that locked me between floors. The badge clone that worked a little too well. 20 years of breaking into companies means 20 years of things not going to plan. Your audience will laugh, cringe, and leave thinking differently about their own security.

For: All-Hands, Security Awareness, Company Events
05

Social Engineering: The Human Attack Surface

Phishing, pretexting, physical infiltration. I've cloned badges, talked my way past front desks, and built phishing campaigns that bypassed every technical control. I show your audience exactly how it works and what makes people fall for it.

For: Security Teams, HR, Company Events
06

Privacy at Scale: Offensive Testing for Platforms

What happens when you test privacy controls at massive scale. Offensive privacy testing methodologies, the gaps most companies don't know they have, and what it takes to find them before regulators do.

For: Privacy Teams, Compliance, DPOs

How I Explain Things

Your CEO and your engineers should both walk away knowing exactly what happened and what to do about it. Here is a real AI security finding of mine, told both ways.

The finding
Target
Vector database provider, Next.js dashboard
Vulnerability
Unauthenticated React Server Action
Request
POST with only the Next-Action header and an org id, even "bogus"
Result
Valid API key with read access to tenant data
Root cause
Login (JWT) was sound; the key-minting action never checked authorization server side
How I explain it

Picture a gate with a serious guard: IDs checked, badges verified, the works. I spent an afternoon trying to get past that guard and couldn't. But the machine that cuts keys to the vault inside, where the customer data lives, was sitting outside the gate, and it didn't check anyone. I never went through the gate at all. I walked up to the key machine, got a key, and opened the vault. The fix took them one day: put the key machine behind the guard, so it checks who you are before it cuts anything.

What your audience takes home: the lock everyone reviews is rarely the one that fails. Attackers go where nobody looked. Read the full write-up →


How I Work

Keynote

The talk your attendees will be quoting in the hallway afterward. Real demos, real attack scenarios, real stakes.

45-60 min

Workshop

Laptops open, code running. Your team leaves with working tools and a new way of thinking about security problems.

Half-day or Full-day

Private Briefing

Behind closed doors with your leadership team. Your threat landscape, your blind spots, your action plan. NDA available.

90 min

Past Talks & Media


Speaker Kit

Everything you need for the agenda and the promo, ready to copy.

Short bio

Leon Johnson is the Privacy Red Team Lead at TikTok (USDS), where he leads offensive privacy testing and vulnerability research. He has spent more than 20 years breaking into companies, including 12 years as a principal security consultant at Rapid7, and has spoken at RSA Conference, Forrester Forums, and Security BSides.

Long bio

Leon Johnson is the Privacy Red Team Lead at TikTok (USDS), where he leads offensive privacy testing and vulnerability research for TikTok's US Data Security initiative and co-discovered CVE-2026-28279 and CVE-2026-28280. Before TikTok he researched AI security threats at RunSybil, and spent 12 years as a principal security consultant at Rapid7 running penetration tests, red team engagements, and social engineering assessments. He created the Mr. Robot CTF, one of VulnHub's most popular challenges with more than 90 community writeups, and builds open source security tools and privacy-first software. Leon has spoken at RSA Conference, Forrester Forums, Rapid7 UNITED, and Security BSides.


Your Audience Will Thank You

Every talk is tailored to your audience, your industry, and your objectives. Tell me who's in the room and what keeps them up at night. I'll handle the rest.