Skip to content
View obsdnx's full-sized avatar
☕
caffeinated
☕
caffeinated
6 followers · 37 following
  • 13:39 (UTC -12:00)

Achievements

Achievement: Pull Sharkx2Achievement: YOLO

Achievements

Achievement: Pull Sharkx2Achievement: YOLO

Block or report obsdnx

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
obsdnx/README.md

CS Student · SWE Intern · Contactless Payment Security Researcher

focus

GitHub Substack Portfolio

aesthetic

About Me 🌌

CS student writing my dissertation on contactless payment protocols — how NFC/EMV systems work at the protocol level and where they break. Turns out the tap-to-pay experience billions of people use every day has some interesting underexplored attack surface. Finding vulnerabilities takes both deep understanding and creativity which I find fun

Alongside the research, I'm interning in ai automation, building automated systems and pipelines in python/js. Theory is cool but sometimes the simplest applications can be the most useful to businesses. I'm working on automaing different processes using Langchain/Lang Graphs, multi-agent n8n flows, trivial scraping scripts.

Lately I've been getting more hands-on with hardware: Arduino projects, and 3D printing in Bambu Studio for personal builds.

I care about tech that's safe, ethical, and built to create real net benefit.

I also keep a Substack where I write small tutorials

Tech Stack 🛠

Languages

Python C C++ TypeScript SQL

Machine Learning

TensorFlow scikit-learn

Networking & Systems

TCP/IP HTTPS Servers NFC/EMV Linux

Hardware & Tools

Arduino 3D Printing Docker Git

GitHub Stats ⊹ ݁

streak

Featured Projects ⊹ ݁

Project Description Tech
emv-protocol-research Metadata leakage and privacy-preserving protocols in contactless payment ecosystems. C · NFC/EMV · Protocol Analysis
kyc-osint Automated client background verification and OSINT platform for financial services. Python · NLP · Web Scraping
packet-sniffer-ids Raw network packet capture and anomaly detection with libpcap. C · libpcap · TCP/IP
mmWave-Sensor-Project Joint object detection from mmWave radar via CNN + RNN fusion. Python · TensorFlow
cf_ai_security_guard Cybersecurity AI assistant on Cloudflare Workers AI with persistent memory. TypeScript · Cloudflare

Let's Connect ⟡

Always happy to connect with engineers, researchers, security folk, and anyone working on interesting systems or hardware problems.

GitHub Substack Portfolio

Thanks for stopping by ⟡

Pinned Loading

  1. c-port-scanner c-port-scanner Public

    A simple, command-line TCP port scanner implemented in C. This utility uses the standard socket() and connect() system calls to determine if ports within a specified range are open on a target IP a…

    C 1

  2. c-packet-sniffer c-packet-sniffer Public

    A command-line tool implemented in C using libpcap to capture, analyze, and process network packets. It serves as a foundational project for building a simple packet sniffer and a single-threaded f…

    C

  3. rust_nn rust_nn Public

    Rust Neural Network - a simple neural network implemented in Rust, aimed at building low-level programming skills while exploring the fundamentals of machine learning. It includes: A feedforward ne…

    Rust

  4. mmwave-wireless-sensing mmwave-wireless-sensing Public

    A mmWave sensing project, joint detection from mmWave data points using CNN and RNN

    Python 1