[ SECURITY ENGINEER — OPEN TO ENGAGEMENTS ]

ALTHAF SHAJAHAN

aka AnGrY — security researcher & bug bounty hunter

I break things to make them stronger — Offensive Security

// Hack — Code — Secure

HTB Pro Hacker THM Top 1% HOF NASA · MasterCard · Sony · Dela Scroll
0+
Years
Experience
0
CVEs
Discovered
Top 1%
TryHackMe
Global Rank
0
Hall of Fame
Entries
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Companies
Secured
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Machines
Pwned

~/angry/whoami

/01

WHOAMI

Six years at the intersection of engineering rigor and the attacker's mindset.

Security Engineer, Security Researcher and Bug Bounty Hunter with 6+ years of breaking — and building — secure systems.

I work across product security, vulnerability assessment & penetration testing (VAPT) and security architecture — with deep roots in offensive security, bug bounty, red teaming and AI. From Hall of Fame disclosures at NASA, MasterCard and Sony to designing security architecture for live products, I build things the way an attacker would try to break them.

Product Security VAPT Security Architecture Offensive Security Bug Bounty Red Team AI
Stylized portrait of Althaf Shajahan
AnGrYSecurity Engineer ID: ANGRY_001
STATUS: ONLINE
HTB RankPRO HACKER
THM RankTOP 1%
CertsCRTA · CEH · CAP · CNSP
Bug BountyACTIVE

// capability index

Bug Bounty Hunting HackerOne · YesWeHack · BugCrowd 95
Penetration Testing Web · API · Android · Network 92
Red Teaming Adversarial Simulation · CRTA certified 88
CTF HTB Pro · TryHackMe Top 1% 90
AI / MCP ML exploit chains · AI integrations 82
Automation Python · Bash · Go · C/C++ · JS 85
Malware Analysis Reverse engineering · Dynamic analysis 78
Security Research Vulnerability research · PoC development 90

~/angry/blog

/02

RECENT POSTS

Field notes from live targets — bug bounty writeups, walkthroughs and research, fresh from Medium.

View all posts on Medium

~/angry/timeline

/03

TIMELINE

2026 — Present

Security Engineer

@ Veuz Concepts

Focusing on product security, vulnerability assessment & penetration testing (VAPT), and security architecture design & implementation.

2025 — 2026

Senior Security Researcher

@ Offenso Hacker Academy

Led offensive security research, vulnerability assessment, and adversarial simulation engagements.

2023 — 2024

Security Researcher

@ RedTeam Hacker Academy

Conducted red team operations, developed custom exploit frameworks, and trained the next generation of security professionals.

2021 — Present

Bug Bounty Hunter

@ HackerOne · YesWeHack · BugCrowd

Active independent security researcher with Hall of Fame entries at NASA, MasterCard, Sony, and Dela.

// credentials

CRTA — Certified Red Team Analyst CEH — Certified Ethical Hacker CAP — Certified AppSec Practitioner CNSP — Certified Network Security Practitioner HTB ProLabs: Dante HTB ProLabs: RastaLabs HTB ProLabs: Poo

~/angry/hall-of-fame

/04

HALLOF FAME

Responsible disclosures and rankings earned across global platforms.

NASA Hall of Fame

Responsible disclosure — critical infrastructure vulnerability

MasterCard Hall of Fame

Financial platform security research

Sony Hall of Fame

Consumer platform vulnerability chain

Dela Hall of Fame

Enterprise application security finding

HackTheBox Pro Hacker

Elite tier — consistent top ranking

TryHackMe Top 1%

Global ranking across all challenges

~/angry/services

/05

WHATI DO

Web · API · Mobile · Network Full-scope adversarial assessment

Adversarial simulation · Social engineering Persistence & lateral movement

Security-aware AI deployments MCP attack surface assessment

Custom tooling · Python / Bash scripts CI/CD security pipelines

Architecture review · Threat modeling Compliance advisory

CTF workshops · Bootcamps Corporate security awareness

~/angry/contact

/06

REACHOUT

LET'S BREACH SOMETHING.

Available for bug bounty collaboration, red team engagements, consulting & training.
// PGP available on request.

angry.althaf@gmail.com