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Founder @secdim, @sectalks. Senior Lecturer @unsw
Homepagehttps://secdim.com

LangChain load() should be renamed to dangerousLoad(). Itโ€™s eval() in disguise. Weโ€™ve spent decades warning engineers about eval(). Repackaging it behind an abstraction doesnโ€™t make it safer. Hereโ€™s why that design choice is dangerous.
https://x.com/secdim/status/2023626877315788853

#AppSec #SecureCoding
@LangChainAI

SecDim (@secdim) on X

In December 2025, CVE-2025-68665, a high-severity vuln was reported on LangChain that could result in arbitrary code execution. We investigate how it was patched. Read about it here: https://t.co/0eqfDBzWIF #appsec #langchain #securecoding #programming

X (formerly Twitter)

My jet-lagged side project: I hacked a MIFARE card and turned it into a smart business card that actually does something when you tap it + It lit-up ๐Ÿ˜Ž

Here is my write-up: https://pedramhayati.com/blog/hack-mifare-card-into-business-card/

Learn secure coding in your way: in your IDE using your own personalised pathway. https://secdim.com/news/secure-code-learning-right-where-you-work-secdim-mcp-14744/
Secure Code Learning Right Where You Work - SecDim MCP

AI MCP secure coding challenge. Hack like 90s https://x.com/secdim/status/1960886731009614333
SecDim (@secdim) on X

Model Context Protocols are increasingly important for LLM contexts. However, they introduce new vulnerabilities. We made challenges for them. Available for free for everyone to try for a Limited Time! ๐Ÿ‘‰ Go try them out now: https://t.co/gzVtmHVLE9 #ai #appsec #securecoding

X (formerly Twitter)
Anyone interested in building Appsec/DevSecOps/Web3/AI challenges for Appsec Village? There will be prizes for top challenges. We are actively looking. Deadline is 3rd August. More info secdim.com/defcon or appsecvillage.com/ctf

Since day one @SecDim has been about making secure code learning accessible to all devs.

Now we go one step further:
โšก Free in-repo secure coding challenges
๐Ÿ”“ For open source projects & volunteer-run meetups

We use OSS. We give back.
https://secdim.com/open-source/

#AppSec #SecureCoding #OpenSource

SecDim - In-Repository Secure Code Learning Wargame

๐Ÿ”ฅ Cooking up something fresh for @firstdotorg!
New challenge formats dropping at #FIRSTCON25 ๐Ÿ‡ฉ๐Ÿ‡ฐ:
๐Ÿ‘จโ€๐Ÿ’ป Incident Response for Developers
๐Ÿ‘จโ€๐Ÿ’ปDefensive CI/CD + Secure Cloud Native Apps
โš”๏ธ Attack & Defence (Battle-Mode) Challenge
Catch us in Copenhagen ๐Ÿ‘‰ https://www.first.org/conference/2025/
We have not even got a solution for Prompt Injection meanwhile whole new classes of AI vulnerabilities have emerged. The same new tech cycle: build, ship, profit, maybe sometime later think how to secure it https://vulnerablemcp.info #ai #security
The Vulnerable MCP Project

A community-maintained database of known vulnerabilities, limitations, and security concerns with the Model Context Protocol (MCP)

I will be hosting a hands-on secure coding and design workshop @NDC_Conferences Melbourne 2025. Come and learn how to build secure cloud native apps from the ground up and move away from duct-tape secure programming. https://secdim.com/post/?slug=ndc-melbourne-2025-fix-the-flag&id=10499 #securecoding #workshop #Australia
SecDim - Secure Coding and AppSec Blog

Busy (but epic) week ahead! Iโ€™ll be at @blackhatevents AISA, with three presentation slots on LLM "insecurity". Catch me at:
๐Ÿ“… Thu, 10:00โ€“11:30, 15:00โ€“15:20 (Theater B)
๐Ÿ“… Fri, 14:30โ€“16:00 (Arsenal)
Want a free pass? here is the guide https://secdim.com/post/?slug=how-to-get-a-free-ticket-to-black-hat-conference&id=5121 #blackhatasia #LLMs
SecDim - Secure Coding and AppSec Blog