Seed stage cyber security investor
Joined May 2008
- Tweets 1,807
- Following 235
- Followers 968
- Likes 548
178 Photos and videos
3 Nov 2025
Sometimes life comes full circle. 17 years ago, I was hired by @zscaler and today they acquired @SplxAI, one of our portfolio companies from Runtime Ventures. Very proud to have helped make this happen.
📰 Big News! Zscaler Acquires AI Security Pioneer @SplxAI! → bit.ly/4qDV4RV
💡 Why does this matter?
AI innovations are reshaping industries, but securing the AI lifecycle—from development to deployment—is key to maximizing its impact. With @SplxAI joining forces with Zscaler, our Zero Trust Exchange now offers:
✅ Advanced AI Runtime Guardrails to protect sensitive data and block malicious prompts
✅ Proactive AI Asset Discovery to uncover risks in workflows, models, and deployments
✅ Automated Red Teaming to simulate attacks and fix vulnerabilities in real time
✅ Robust Governance & Compliance to secure AI investments at every stage
💡 Why should customers care?
As AI drives adoption at breakneck speed, Zscaler’s newly combined security capabilities ensure organizations can innovate safely while mitigating risks.
Together, we’re not just protecting AI—we’re empowering businesses to embrace its potential with trust, reliability, and unparalleled security.
#AI #ZeroTrust #CyberSecurity #AILeadership
ALT Promotional image featuring the Zscaler logo and SPLX logo on a blue gradient background.
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12 Oct 2024
If this book wasn’t written by ChatGPT, I’ll be super disappointed.
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12 Jun 2024
Proud to have served on the Advisory Board for this great event. I encourage you to attend if you want to learn about the cyber investing/startup ecosystem from some of the brightest minds in the business.
7 Jun 2024
ANNOUNCEMENT: Introducing the Innovators & Investors Summit at #BHUSA 2024! Bringing together entrepreneurs, CISOs, & industry front-liners to focus on the latest market trends & tech innovation. Counteract today's evolving threat landscape.
Apply Now: bit.ly/3X7xMYq
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Michael Sutton retweeted
24 Apr 2024
I’m extremely excited to announce that @sublime_sec has raised a $20M Series A led by @indexventures with participation from @DAlperovitch
I wrote about our journey from black box to open platform, and where we're headed:
sublime.security/blog/announ…
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21 Feb 2024
Excited to share the launch of Runtime Ventures (runtime.vc/), a VC fund focused on seed stage cyber. Dave Endler and I have been working on this for a couple of years and it's finally time to take the covers off. linkedin.com/posts/michaelaw…
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23 May 2023
Honored to have been included in this year’s Business Insider Seed 100 list, a list of the “the best early-stage investors of 2023”. #businessinsider #seed100 businessinsider.com/100-best…
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14 May 2023
Great to see the @XFLDefenders carrying on the time honored DC sporting tradition of 💩 the 🛌. #XFL #XFLChampionship
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30 Mar 2023
Congrats Dor Fledel and Ariel Kadyshevitch on the public launch of @sperasecurity! SaaS Sprawl = Identity Sprawl and there’s finally a solution. Excited to back you and anxious for the world to see your vision.
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14 Oct 2022
Did Jeff Bezos just use his #TNF purchase to dunk on Dan Snyder so that he can buy the team? Finally, a conspiracy theory I can get behind. #HTTC #TNFonPrime
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24 May 2022
Incredibly excited to add @limacharlieio to the StoneMill Ventures portfolio. When I heard the vision I had to recalibrate my view of the security market. Why buy a generic security solution when you can build a custom, purpose built solution? @limacharlieio will change the game.
24 May 2022
The team at @limacharlieio is excited to announce that we have raised a $5.45m seed round from @SusaVentures @XeroxVentures @CoFoundPartners @LongJourneyVC Sands Capital @michaelawsutton and @LyticalVentures.
Details here: limacharlie.io/press
#cybersecurity #startup #seed
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24 May 2022
Work smarter, not harder.
23 May 2022
"Everybody else in the penalty box" 🤣 x.com/BR_OpenIce/status/1528…
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Michael Sutton retweeted
5 Apr 2022
Ever wondered how the research team at @RumbleDiscovery come up with fun ways to fingerprint devices or provide visibility into your network without authentication? You've got to go back to the roots of our founder @hdmoore. Check out this episode of @DarknetDiaries.
5 Apr 2022
Ep 114: HD
@hdmoore invented a hacking tool called Metasploit. He crammed it with tons of exploits and payloads that can be used to hack into computers. What could possibly go wrong?
darknetdiaries.com/episode/1…
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Michael Sutton retweeted
5 Apr 2022
We're proud to announce that starting today, all @runpanther_ customers running v1.32 have out-of-the-box access to GreyNoise to improve their detection fidelity.
Read our blog post to learn more about the partnership: greynoise.io/blog/focus-on-t…
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Michael Sutton retweeted
25 Mar 2022
The modern security stack 🔒
- @snyksec (vuln mgt)
- @fleetctl (device mgt)
- @RumbleDiscovery (net scan)
- @trufflesec (secrets scan)
- @runpanther_ (siem)
- @tines_io (automation)
- @material_sec (email)
- @GreyNoiseIO (intel)
- @goteleport (access)
- @ThinkstCanary (tokens)
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Michael Sutton retweeted
22 Mar 2022
I am so stoked about this. We're excited to bring on our first ever GreyNoise Research Intern(s). Send to your friends, apply now, etc etc.
22 Mar 2022
We're hiring our first @GreyNoiseIO Intern(s)! Hit up @nathanqthai or me if you have any q's jobs.greynoise.io/research-i…
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Michael Sutton retweeted
14 Mar 2022
Rumble has raised $15 million in funding, led by @DecibelVC, to help IT and security teams know their networks. In 2021, we grew our user base 3x, customer base 4x, and ARR 5x. These funds will help us continue accelerating our growth and technology.
rumble.run/press/series-a-fu…
ALT Rumble, Inc announce $15M Series A funding
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Michael Sutton retweeted
24 Feb 2022
In light of the Russian ground invasion of Ukraine, we (@GreyNoise) are doing a few things to be as helpful as possible for network defenders in Ukraine. I understand that the impact will be small all things considered, but this is just where we are:
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