Security Researcher @BeyondTrust Former Founding Engineer @ProwlerCloud

In the clouds
Joined June 2022
Sergio Garcia retweeted
What an incredible week at BlackHat & DEFCON in Vegas! It’s always great reconnecting with people across the industry I rarely get to see or spend time with. But some of my favorite moments this week were getting to watch three @btphantomlabs team members hit some huge milestones. @MrCloudSec presented at BlackHat Arsenal for the first time. @Haus3c and @kidtronnix took the DEFCON main stage for the first time. They presented some incredible research, and getting to see them share their work on those stages was awesome. Couldn’t be prouder of this team. What a week!
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Sergio Garcia retweeted
Replying to @MrCloudSec
@MrCloudSec is killing it in his BH Arsenal presentation around Bedrock Keys and Demoing his AWS Bedrock API keys security toolkit! @btphantomlabs
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Sergio Garcia retweeted
⚡ Sandbox User Can Inject Rogue CA Certificate into OS Trust Store via Sudo-Allowed deploy-certific... 👨🏻‍💻 @MrCloudSec ➟ AWS VDP 🟧 Medium 💰 None 🔗 hackerone.com/reports/363314… #bugbounty #bugbountytips #cybersecurity #infosec
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Sergio Garcia retweeted
⚡ bedrock-mantle.api.aws accepts Bedrock API keys outside the IAM Deny, CloudTrail signal, and invo... 👨🏻‍💻 @MrCloudSec ➟ AWS VDP 🟧 Medium 💰 None 🔗 hackerone.com/reports/370207… #bugbounty #bugbountytips #cybersecurity #infosec
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Sergio Garcia retweeted
⚡ Bedrock AgentCore Starter Toolkit Creates Gateway IAM Roles Without Confused Deputy Protections 👨🏻‍💻 @MrCloudSec ➟ AWS VDP 🟧 Medium 💰 None 🔗 hackerone.com/reports/363257… #bugbounty #bugbountytips #cybersecurity #infosec
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Sergio Garcia retweeted
⚡ Kiro IDE Stores Auth Tokens with World-Readable Permissions (0644) 👨🏻‍💻 @MrCloudSec ➟ AWS VDP 🟧 Medium 💰 None 🔗 hackerone.com/reports/363060… #bugbounty #bugbountytips #cybersecurity #infosec
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AI agents are becoming operational coworkers inside the enterprise, but many organizations are deploying them faster than they can govern them. Our latest research explores security risks tied to Copilot Studio and agentic AI workflows. beyondtrust.com/blog/entry/c… #AISecurity
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Part two of @MrCloudSec's comprehensive AWS Bedrock API key security guide is live, and this is where it gets actionable. Building on the risks we outlined in part one, this installment dives into exactly how security teams can fight back. Check it out:beyondtrust.com/blog/entry/a…
🤖 Made with AI
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New research! Security Researcher, Sergio Garcia (@MrCloudSec) uncovers a major risk in AWS Bedrock API keys: the “phantom user” problem. Check it out: beyondtrust.com/blog/entry/a… #AWSBedrock
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Sergio Garcia retweeted
My new toxic trait is using this Slack emoji when people send me lazy AI slop
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Sergio Garcia retweeted
𝗜 𝗯𝘂𝗶𝗹𝘁 𝗮𝗻 𝗔𝗜 𝘄𝗼𝗿𝗺 𝘁𝗵𝗮𝘁'𝘀 𝘁𝗼𝗼 𝗱𝗮𝗻𝗴𝗲𝗿𝗼𝘂𝘀 𝘁𝗼 𝗿𝗲𝗹𝗲𝗮𝘀𝗲 𝘁𝗼 𝘁𝗵𝗲 𝗽𝘂𝗯𝗹𝗶𝗰. 😈😅 When @AnthropicAI announced that their Mythos model was too dangerous to release, the industry was shocked. 𝗜 𝘄𝗮𝘀𝗻'𝘁. Because I already knew it was possible to misuse these models as self-propagating cyber weapons. I know - 𝗯𝗲𝗰𝗮𝘂𝘀𝗲 𝗜 𝗯𝘂𝗶𝗹𝘁 𝗼𝗻𝗲. It's like 𝘨𝘢𝘪𝘯-𝘰𝘧-𝘧𝘶𝘯𝘤𝘵𝘪𝘰𝘯 𝘳𝘦𝘴𝘦𝘢𝘳𝘤𝘩 in virology, where scientists engineer dangerous pathogens in controlled environments - so we can defend against them 𝘣𝘦𝘧𝘰𝘳𝘦 𝘯𝘢𝘵𝘶𝘳𝘦 𝘥𝘰𝘦𝘴 𝘪𝘵 𝘧𝘰𝘳 𝘶𝘴. I took the same approach with AI. And what I found keeps me up at night. 𝗪𝗵𝗮𝘁 𝗵𝗮𝗽𝗽𝗲𝗻𝘀 𝘄𝗵𝗲𝗻 𝘁𝗵𝗲 𝗔𝗜 𝗯𝗿𝗲𝗮𝗸𝘀 𝗳𝗿𝗲𝗲? 𝗔𝗻𝗱 𝘄𝗵𝗮𝘁 𝗰𝗮𝗻 𝘄𝗲 𝗱𝗼 - 𝗿𝗶𝗴𝗵𝘁 𝗻𝗼𝘄 - 𝘁𝗼 𝘀𝘁𝗼𝗽 𝗶𝘁? That's what I'll be unpacking at @fwdcloudsec in my talk: 𝘞𝘩𝘢𝘵 𝘉𝘶𝘪𝘭𝘥𝘪𝘯𝘨 𝘢𝘯 𝘈𝘐 𝘞𝘰𝘳𝘮 𝘛𝘢𝘶𝘨𝘩𝘵 𝘔𝘦 𝘈𝘣𝘰𝘶𝘵 𝘚𝘵𝘰𝘱𝘱𝘪𝘯𝘨 𝘖𝘯𝘦. If you're working in security, AI, or just care about what's coming - this one's for you. And if you want more research like this - follow @btphantomlabs. We're publishing the cutting-edge AI security research you need to know about before everyone else does. 🔬
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New research from Ryan Hausknecht shows how that power can quietly become command & control; blending into normal behavior while automating endpoint access. We break down architecture, abuse paths, and even detection angles. ➡️ beyondtrust.com/blog/entry/c… #AISecurity #AIAgents
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Sergio Garcia retweeted
I'm looking for a senior/staff level researcher to join my team @btphantomlabs. I'm looking for someone who: - Has research experience in the Cloud, identity, and/or AI space - Understands attack path management + graph theory - Active directory knowledge is a plus - History of making blog posts/webinars/conference talks/etc. is also a huge plus This is a full time research role on a dedicated research team. Fully remote, competitive salary. Apply here: beyondtrust.com/company/care…
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Sergio Garcia retweeted
We found a critical vulnerability in @OpenAI Codex affecting all Codex users, allowing exfil of a victim’s GitHub tokens to our C2 server. This granted lateral movement and R/W access to a victim’s entire code base 😈 This was a crazy one by @crew7sec at @btphantomlabs
Breaking: Newly uncovered OpenAI Codex vuln enables command injection via GitHub branch names in task creation requests. Attackers could steal GitHub user access tokens & sensitive data. Full breakdown by Tyler Jespersen: lnkd.in/ewdTaiEa #OpenAI #BTPhantomLabs
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Breaking: Newly uncovered OpenAI Codex vuln enables command injection via GitHub branch names in task creation requests. Attackers could steal GitHub user access tokens & sensitive data. Full breakdown by Tyler Jespersen: lnkd.in/ewdTaiEa #OpenAI #BTPhantomLabs
🤖 Made with AI
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Heading to Seattle BSides next week? Don’t miss Sergio Garcia’s talk on the real identity attack surface and risks hidden in Bedrock. Live demo + detection. Feb 28 @ 2 PM. Event schedule: lnkd.in/eKfKF5We #Bsides #Bedrock
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