Priyanshu Singh

Available for work

Offensive Security Researcher

--:-- -- // IST

Lucknow, India

he/him

Offensive security researcher focused on penetration testing, Active Directory security, vulnerability research, and attack-surface analysis. Work centers on validating security controls, analyzing attack paths, and documenting findings with clear technical methodology.

Resume Contact

Security Activity

HackerOne

Vulnerability Research

Web Security · API Security · Attack Surface Analysis

Authorized security research across production web applications, APIs, and externally exposed attack surfaces.

Mapping application attack surfaces and identifying weaknesses across authentication, authorization, and application logic.
Reproducing security issues, validating exploitability, and documenting technical impact for coordinated disclosure.

Bugcrowd

Security Assessment & Vulnerability Discovery

Application Security · Access Control · Business Logic

Structured security testing of web applications and APIs within defined program scope and disclosure requirements.

Investigating access-control boundaries, business logic, API behavior, and server-side input handling.
Correlating application behavior with viable attack paths to establish security impact and reproducibility.

CTFtime

Competitive Offensive Security

Binary Exploitation · Reverse Engineering · Cryptography

Practical offensive-security research through competitive challenges across multiple technical domains.

Analyzing vulnerabilities, binaries, cryptographic implementations, and forensic artifacts under constrained conditions.
Applying exploitation, reverse engineering, enumeration, and attack-path analysis to solve complex security problems.

Projects

Selected Work

Security research and engineering across offensive security, vulnerability research, CTF infrastructure, and local AI systems.

Aether

Local AI / Desktop Systems

A local-first AI desktop system focused on modular architecture, privacy-preserving operation, intelligent task routing, and a layered architecture across the presentation, platform, and intelligence layers.

RustTauriReactTypeScriptPythonLocal AISystem Architecture

Source

Opscore

Security Operations / Research

A security-focused operations and research project designed around offensive security workflows, technical investigation, attack-surface analysis, and structured security operations.

Offensive SecuritySecurity ResearchAttack Surface AnalysisSecurity Tooling

Source

Facility Zero

CTF Infrastructure / Cyber Range

A purpose-built CTF platform and competition environment designed for controlled security challenges, participant management, team workflows, challenge delivery, and competition operations.

Technical Focus

Designed and operated a controlled CTF environment covering challenge delivery, participant workflows, team management, and security-focused competition infrastructure.

CTFCyber RangeWeb SecurityCompetition Infrastructure

Research

HackerOne Research

Vulnerability Research / Bug Bounty

Authorized vulnerability research conducted through the HackerOne platform, focusing on web applications, APIs, authentication, authorization, application logic, and exposed attack surfaces.

25 Valid Vulnerabilities Identified

Identified and responsibly disclosed 25 valid security vulnerabilities through authorized vulnerability research across web applications, APIs, authentication, authorization, and application logic.

Vulnerability ResearchBug BountyAPI SecurityAttack Surface Analysis

HackerOne Profile

HARDWARE & SECURITY ENGINEERING

Security research across embedded systems, custom hardware, firmware, and physical attack surfaces.

Embedded Security / Security Research

Raspberry Pi Security Lab

Built a Raspberry Pi-based security lab for hands-on analysis of embedded Linux, network services, system interfaces, and device-level attack surfaces in a controlled environment.

Hardware Security / HID Research

Custom HID Security Device

Designed and built a custom USB HID security research device to investigate host-device interaction, trusted input paths, and physical attack surfaces under controlled conditions.

Embedded Systems / IoT Security

Custom IoT Security Device

Designed a custom IoT security platform around a custom PCB to investigate firmware behavior, device communications, hardware interfaces, and embedded security boundaries.

Contributions

@exe-you