Over the last two decades, I’ve helped make hundreds of organizations more secure.

My mission is to leave the Internet a more secure place than I found it.

I’m helping organizations handle billions of users' information securely and increasing brand’s trust among their customers.

I run a cybersecurity media brand called Vulnerable U. We run a popular cybersecurity newsletter along with daily social media video content across platforms.

We've also built a team @ Vulnerable U to help YOUR company with its tech marketing needs. The team is staffed with experts who can create content for you without the marketing cringe factor. You don't need to teach us to spell Kubernetes. (I'm hiring content creators here if you're looking)

My portfolio:

→ I was the head of Software Security at Reddit where I help design security into all facets of the business for the 4th largest social network in the US and a top 20 most visited website globally
→ I teach company’s how to protect against cyber attacks and save tens of millions of dollars in losses.
→ I coach entrepreneurs and CISOs that need help with infrastructure, application, cloud, and security policies.
→ I advise early-stage companies in cyber security best practices and help pass technical due diligence from investors and potential acquirers.
→ I invest in early-stage private technology companies focusing on cybersecurity, software infrastructure, employee productivity, and B2B/SaaS.
→ I volunteer for a selection of non-profits who’s missions I connect with who wouldn’t otherwise be able to afford technical and specifically security consulting services..

If you want to work with me, get in touch

Matt Johansen

CEO @ Ghost Security | Racing Enthusiast | Pug Life

With over 20 years experience in developing innovative cybersecurity solutions, I’m passionate about challenging the status quo and driving progress in the industry.

At Ghost Security, we prioritize teamwork, ownership, respect, integrity, and a customer-centric approach. 

Together, we’re committed to making software safe for everyone.

Learn how Ghost can help protect your apps: https://cal.com/gregcmartin/15min

Greg Martin

Excited to drop my latest podcast, this time with a good friend Pedram Amini (aka the most interesting hacker in the world)

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Matt Johansen

Greg Martin

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The Battle

Matt Johansen

Greg Martin

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Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}Greg Martin's LinkedIn Performance

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Performance ScoreGreg Martin's LinkedIn Performance