// CYBERSECURITY RESEARCHER & PENTESTER

S Deva
Kumar

aka dev0root · Bengaluru, IN · 127.4.7.8

President, AIT Cyber Security Club. Building at the intersection of offensive security, IoT hacking, and infrastructure engineering. Independently discovered a significant vulnerability in META AI's WhatsApp integration.

VIEW PROJECTS RESUME.PDF GET IN TOUCH
dev0root@kali: ~
whoami S Deva Kumar (dev0root) — pentester, SRE, club president cat focus.txt IoT Hacking · Vulnerability Analysis · Prompt Engineering DevOps · Hardware Hacking · Red Team Ops cat projects.txt | wc -l 27 repositories · 23 public
██████╗ ███████╗██╗ ██╗ ██╔══██╗██╔════╝██║ ██║ ██║ ██║█████╗ ██║ ██║ ██║ ██║██╔══╝ ╚██╗ ██╔╝ ██████╔╝███████╗ ╚████╔╝ ╚═════╝ ╚══════╝ ╚═══╝ 0root · 127.4.7.8
ticker powered by @chenglou/pretext — pure arithmetic layout · zero DOM reflow
01. ABOUT

Background.

Highly driven cybersecurity researcher and AI enthusiast based in Bengaluru. President of the AIT Cyber Security Club, completed an SRE internship at Xcelerator, and actively building a portfolio spanning DevOps tooling, offensive security, and infrastructure automation.

My work spans the full stack of security — from low-level hardware hacking with ESP8266 and Arduino, to BLE exploitation, WiFi attacks, and vulnerability research against production systems. Currently developing a Split-Personality OS on custom Debian and a Lain-inspired browser OS simulation.

DISCLOSURE · 2024
META AI / WhatsApp Integration — Vulnerability
Independently identified a significant security flaw in META AI's WhatsApp integration through meticulous analysis. Responsible disclosure.
27
GITHUB REPOS
10+
HARDWARE PROJECTS
1
CVE-CLASS VULN
PACKETS SENT
SRE Intern
Xcelerator
2024 · Site Reliability Engineering · System health, infra automation
President, Cyber Security Club
Atria Institute of Technology, Bengaluru
Current · CTF design, labs, club leadership & research
Independent Security Researcher
dev0root.in
Ongoing · IoT, BLE, Web, Hardware exploitation
VS Code Extension Developer
Vertex-code-IDE · v1.1.0
Feb 2026 · AI tutoring, live call graph, multi-model AI
02. SKILLS

Arsenal.

[ LANG ]
Python
Primary · automation, scripts, tooling
[ LANG ]
C / C++
Embedded systems, Arduino, microcontrollers
[ HACK ]
IoT Hacking
BLE, ESP8266, OLED, relay, Evil Twin
[ SEC ]
Vulnerability Analysis
Web, API, hardware, responsible disclosure
[ SYS ]
Linux Administration
Kali, Debian, systemd, networking, hardening
[ DEV ]
DevOps / Infra
Docker, Portainer, Grafana, Cloudflare, Vercel
[ WEB ]
Full-Stack / Web
React, Flask, Cloudflare Workers, Neon PG
[ AI ]
Prompt Engineering
LLM workflows, AI integration, model tuning
[ HW ]
Hardware Hacking
HID attacks, BLE spammer, WiFi deauther
03. PROJECTS

Built Things.

Vertex-code-IDE

VS Code extension with AI tutoring, live call graph visualization, and multi-model AI support via Gemini, OpenRouter, and Ollama. Reached v1.1.0 in Feb 2026 with active momentum.

VS CodeTypeScriptGeminiOpenRouterOllamaAI
[ VERTEX-CODE-IDE v1.1.0 ] Engine : Gemini / OpenRouter / Ollama Status : ACTIVE DEVELOPMENT Feat : AI Tutoring + Call Graph Model : Multi-model switching ████████████████ STABLE
REACT · FULLSTACK
TRACKER

Project management tool built with React, Cloudflare Workers, and Neon PostgreSQL. Full task/project lifecycle with real-time updates.

ReactCloudflare WorkersNeon PG
SECURITY · MERN
Cipher-Chat

End-to-end encrypted MERN chat application with ECDH key exchange, AES encryption, and PBKDF2 key derivation. True zero-knowledge messaging.

MERNECDHAESPBKDF2E2E
3D · VISUALIZATION
Repo Universe

Interactive 3D GitHub repository explorer powered by Three.js. Visualizes repos as a navigable star map in the browser.

Three.jsGitHub APIWebGL3D
BLE · HARDWARE
BLE Spammer

Bluetooth Low Energy spamming tool using HM-10 module with real-time message updates on SH1106 I2C OLED. Custom firmware, live packet injection.

BLEHM-10OLEDC++
WIFI · HARDWARE
WiFi Deauther & Evil Twin

ESP8266-based WiFi deauthentication attack tool with Evil Twin access point and custom OLED display sequence.

ESP8266WiFiDeauthEvil Twin
DOCKER · SELFHOST
VPLAY

Self-hosted Docker video player. Clean containerized media delivery with no third-party dependencies.

DockerSelf-hostedMedia
CLI · DEVTOOLS
SQL VCS

CLI integrating Git-style version control with SQLite. Full auth, authorization, and commit management workflow entirely inside a database.

PythonSQLiteGitCLI
HID · ARDUINO
Arduino HID Attack

Automatic Bluetooth HID attack interface using ATmega328P. Emulates keyboard/mouse for physical access testing.

ArduinoHIDBluetoothC
AI · OSINT
QuickBot

AI-powered NLTK chatbot for Google search, website cloning, and Google Dorking. Automated recon pipeline with NLP.

PythonNLTKOSINTDorking
04. CONTACT

Get in Touch.

Open to security research collaborations, red team engagements, DevOps/SRE roles, and hardware hacking projects. Ping me anywhere below.