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Mark Manning

@antitree.com
480 followers 845 following 178 posts

Process isolationist, k8s hacker, ᴎo-prem pusher, syscall denier, container liberator 🔸Xxx 🔸Rochester 2600, IOIOIO Security 🔸Former: chainguard, Snowflake, NCC Group, Hackerspace starter, BSidesROC Founder

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Mark Manning @antitree.com · 03/08/2026
Heading to DEFCON. Couldn't find anyone that made this so I wrote it: A flipper zero NFC canary: keep it in your pocket or bag to keep track and alarm when someone tries to scan your gear while you're walking around the con. github.com/antitree/nfc...
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Mark Manning @antitree.com · 04/06/2026
Tomorrow is my last day at @chainguard.bsky.social Best company ever. I may kick myself for leaving but I will definitely kick myself if I don't try out the next opportunity. I've been a fan of this company from its inception. Marketing to 4-10 year olds in my neighborhood since 2023
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Mark Manning @antitree.com · 07/03/2026
A quick video of the current home of Rochester 2600. Thanks to Forrest. Not shown here: The earthquake button that simulates what it would be like working for a tech company in San Francisco.
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Mark Manning @antitree.com · 11/12/2025
All the AI in the world and Google's cameras still think snow is someone walking
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Mark Manning @antitree.com · 26/11/2025
I'm a sucker for books that support my belief that we're all doing infosec poorly or just for the sake of infosec. This has been an interesting read so far
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Mark Manning @antitree.com · 21/11/2025
Uh oh. Check your GCP Cloud Run jobs.
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Mark Manning @antitree.com · 04/10/2025
This was 2600 meeting last night. It's getting overwhelming when you look closely
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Mark Manning @antitree.com · 24/08/2025
An answer to everyone's question: "What if a Linux syscall was an anthropomorphic action figure?"
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Mark Manning @antitree.com · 10/08/2025
Nothing beats getting out for a run in Vegas before sphererise. #defcon
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Mark Manning @antitree.com · 08/08/2025
Catching @bouncyhat.bsky.social 's talk in track 4. Pretty excited
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Mark Manning @antitree.com · 08/06/2025
All I can say is I worked very hard to angle myself into a position to receive one of these today. Thanks @bsidesbuffalo.bsky.social
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Mark Manning @antitree.com · 07/06/2025
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Mark Manning @antitree.com · 07/06/2025
Starting my talk for @bsidesbuffalo.bsky.social
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Mark Manning @antitree.com · 07/06/2025
Just a Friday night with containers, seccomp profiles, and LLMs at @roc2600.bsky.social
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Mark Manning @antitree.com · 09/05/2025
Going back to CVE-2019-5736 for a true container 0day for a demo at @bsidesbuffalo.bsky.social next month. Seccomp will save us right?
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Mark Manning @antitree.com · 19/04/2025
It was a great week at @chainguard.bsky.social when I found out I work with the person that wrote Crane and he pointed me at some fun registry security hints. Here's a preview of an update I'm working on to autodiscover whiteout files in registry images
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Mark Manning @antitree.com · 20/03/2025
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Mark Manning @antitree.com · 19/03/2025
Here are my slides from @bsidesreykjavik.com. * Backdooring a container image (Vault) * Exfiltrate secrets via DNS * Update to pillage registry tool (originally created by Josh Makinen) www.canva.com/design/DAGgr...
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Mark Manning @antitree.com · 19/03/2025
Excited to be at @bsidesreykjavik.com. I have some guilt that I am missing my hometown B-Sides ROC for the first time ever though which is also today but I can't resist Iceland.
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Mark Manning @antitree.com · 18/03/2025
As expected, Reykjavik is still pretty cool. My @bsidesreykjavik.com is tomorrow morning bright and early so laying low tonight and appreciating the scenery
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Mark Manning @antitree.com · 17/03/2025
Idk how many people I've shown K9s to now but everyone has the same reaction - what is that and give it to me! I wish I had time to hack in some of the cool Chainguard debugging tools though
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Mark Manning @antitree.com · 13/01/2025
My prize possession. A gift from @neutrino.bsky.social who is adding 3d printing to his list of expertises
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Mark Manning @antitree.com · 11/01/2025
Quick preview of my seccomp tool for containers that I'll be presenting tomorrow at #shmoocon
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Mark Manning @antitree.com · 01/01/2025
How I brought in 2025. Happy new year! See you at Shmoo.
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Mark Manning @antitree.com · 13/12/2024
Years ago I built this custom magnetic poetry set to come up with future vulnerability names. Anyone interested in a pack?
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Mark Manning @antitree.com · 12/11/2024
I just learned that part of the XZ incident, the attacker disabled Landlock, thE application sandboxing LSM (that I keep hoping grabs more use cases) 1. I didn't think Landlock was that widely adopted at the app level 2. Surprised that XZ could meaningfully use it for such a low level function
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Mark Manning @antitree.com · 08/11/2024
I don't always buy lock picks IRL but when I do, it's from an unmarked warehouse that only accepts cash. 10/10, loved visiting Peterson Manufacturing in Rochester today for a local pickup.
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Mark Manning @antitree.com · 29/10/2024
Rochester 2600 meeting this week. See you at 7pm on Friday at RIT for another interesting set of discussions for nerds and non-nerds a like. www.rochester2600.com/meetings/202...
randomly generated 2600 logo with a squirrel and pumpkin latte
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