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Sandhiya D.

~/sec$ ▌

Securing systems through AI-driven intelligence and an offensive security mindset.

0Cyber Projects
0Security Tools
0Certifications
0CTF Wins
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01 // ABOUT

Security-first
mindset.

I'm a Cybersecurity Engineering student at KCG College of Technology (CGPA 8.44), graduating 2027 — building at the intersection of offensive security and AI-driven threat detection.

My journey started with curiosity about how systems break. That curiosity evolved into real VAPT engagements, CTF podium finishes, and AI-powered security tools. I don't just find vulnerabilities — I understand why they exist and architect systematic defenses against them.

Whether scanning for OWASP Top 10 flaws, engineering adaptive Zero Trust concepts, or deploying ML for anomaly detection — I approach every challenge with an attacker's instinct and a defender's discipline.

Red Teaming AI Security Malware Analysis Threat Detection Security Automation Cloud Security
profile.json
name: "Sandhiya D",
role: "Cybersecurity Engineer",
focus: "Offensive + AI Security",
edu: "B.E CSE – Cybersecurity",
college: "KCG College of Tech",
cgpa: 8.44,
grad: 2027,
status: "seeking_roles"
// CAPABILITY RADAR
Penetration Testing
87%
OWASP Coverage
85%
AI/ML Security
82%
Security Automation
80%
02 // SKILLS MATRIX

Technical Arsenal

⚔
Offensive Security
VAPTOWASP Top 10Web Pen Testing Network ReconSQLi / XSSThreat Analysis
🛡
Defensive Security
Risk AnalysisIDS/IPSMalware Analysis Zero TrustSecurity ReportingFirewall Design
🤖
AI / ML Security
TensorFlowPyTorchAnomaly Detection Computer VisionClassification ModelsNLP
⌨
Programming
PythonJavaScriptC / C++ HTML / CSSBash Scripting
// SECURITY TOOLKIT
🕷
Burp Suite
Web Proxy
📡
Nmap
Recon
💣
Metasploit
Exploitation
💉
SQLmap
SQLi
🦈
Wireshark
Packets
🔍
OWASP ZAP
DAST
🔓
Gobuster
Fuzzing
🐉
Kali Linux
Platform
03 // SECURITY PROJECTS

Case Studies

LIVE ENGAGEMENT WEB APPLICATION VAPT

HindustanSchools.in
Security Assessment Report

A structured, methodology-driven web application penetration test against a live education platform. Identified and documented critical vulnerabilities using the OWASP Top 10 framework, manual testing techniques, and automated tooling — culminating in a boardroom-ready security report with actionable remediation guidance.

01
Reconnaissance

Passive OSINT via WHOIS, Shodan, and Google dorking. Active recon with Nmap enumerated open ports (80, 443, 3306), service versions, OS fingerprinting, and CMS identification.

02
Scanning & Enumeration

Gobuster bruteforced directories, exposing /admin and /backup. Burp Suite intercepted session cookies, auth tokens, and POST parameters. OWASP ZAP ran full DAST scans across all endpoints.

03
Exploitation & Findings

Confirmed SQL Injection in login endpoint via SQLmap. Identified IDOR at /user?id=, reflected XSS in search param, and missing HSTS/CSP headers. All findings CVSS v3.1 scored.

04
Risk Report Delivery

Delivered structured VAPT report with executive summary, technical evidence with PoC screenshots, risk matrix, CVSS scoring, and a prioritised remediation roadmap aligned with OWASP.

Burp SuiteNmapSQLmap OWASP ZAPGobusterOWASP Top 10
vapt_scan.sh — kali
$ nmap -sV -A -T4 hindustanschools.in
PORT 80/tcp OPEN Apache httpd 2.4
PORT 443/tcp OPEN SSL/TLS
PORT 3306/tcp OPEN MySQL 5.7
# Directory enumeration…
$ gobuster dir -u target -w common.txt
[!] /admin → 200 OK
[!] /backup → 200 OK
# Running SQLmap…
$ sqlmap -u "target/login" --dbs
[CRITICAL] SQLi confirmed at /login
[HIGH] IDOR at /user?id=
[HIGH] XSS in ?search=
[MEDIUM] Missing HSTS header
# Generating CVSS report…
✓ VAPT Report: 7 findings exported
CRITICAL01
HIGH02
MEDIUM03
LOW01
ARCHITECTURE DESIGN · NETWORK SECURITY

Adaptive Zero Trust Firewall

Designed a conceptual Zero Trust network firewall that dynamically adjusts access policies in real-time using behavioral AI, device posture scoring, and live threat intelligence — moving beyond perimeter-based thinking to identity-aware, packet-level verification.

▸
Architecture: Micro-segmentation + identity-aware proxy with least-privilege enforcement per session
▸
AI Engine: Behavioral baseline model flags deviation scores above threshold — no static rules
▸
Threat Intel: Integrated live IP reputation feeds with internal anomaly scores for dynamic access decisions
▸
Security Vision: "Never trust, always verify" — enforced at packet level, not just the network edge
Zero TrustIDS/IPSPython Behavioral AINetwork Architecture
// Zero Trust Flow
User/Device
→
Identity Verify
→
AI Posture Score
→
Policy Engine
→
Access Granted
"Never trust, always verify — at every hop."
04 // EXPERIENCE

Professional Timeline

CURRENT
Jan 2026 – Apr 2026

Cybersecurity Intern

UptoSkills — Virtual Internship
  • Conducting VAPT on web applications — network scanning, enumeration, and exploitation
  • Performing OWASP Top 10 testing (SQLi, XSS, IDOR) with documented CVSS scoring
  • Producing professional security audit reports with executive summaries and remediation plans
  • Working with Burp Suite, SQLmap, Nuclei, Wapiti, Nmap, and Gobuster
Burp SuiteNmapOWASPSecurity Audit
Apr 2025 – Aug 2025

AI / ML Intern

MitBots — Virtual Internship
  • Built AI-enhanced Question Bank Framework model for educational institutes
  • Developed ML-powered Fitness Tracking daily monitoring system
TensorFlowPythonNLP
Jan 2025 – Apr 2025

AI / ML Intern

UptoSkills — Virtual Internship
  • Eye-Disease Classification — AI-powered vision loss disease classifier (Glaucoma, Cataract, etc.)
  • Crowd Surveillance — AI-enhanced anomaly and gender detection in crowd environments
PyTorchComputer VisionYOLO
2023 – 2027

B.E Computer Science Engineering

KCG College of Technology — Cybersecurity Specialization
  • CGPA: 8.44 — Specialization in Cybersecurity
  • Core: Network Security, Cryptography, Ethical Hacking, AI/ML, Operating Systems
  • Active in security clubs, CTF competitions, and research projects
CybersecurityCGPA 8.44AI/ML
05 // CTF & ACHIEVEMENTS

Competitive Record

🥇
1st Place

ZERO DAY CTF

Secured first place in the inter-college CTF hosted by KCG Department of Cybersecurity — web exploitation, cryptography, reverse engineering, forensics, and OSINT challenges.

🥉
3rd Place

Cyber Hackathon

Placed 3rd in the SRM University Cyber Hackathon — built a security solution prototype under 24-hour constraints, demonstrating rapid threat modeling and development.

🎯
Active Practitioner

TryHackMe Streak

30-day cybersecurity practice streak — completing rooms in penetration testing, privilege escalation, web hacking, and Active Directory attack paths.

🎪
Event Leadership

Cyber Fest Lead

Event Lead at Cyber Fest Cybersecurity Symposium — organized and ran the Among Us Cybersecurity social engineering challenge event.

// CERTIFICATIONS
KCG × Datayaan
VAPT (76 hrs)
✓ Verified
Cisco
Intro to Cybersecurity
✓ Verified
Cisco
CCNA – Networks
✓ Verified
Python.org
Python Essentials 1 & 2
✓ Verified
NPTEL
Privacy & Security Online
✓ Verified
06 // RESEARCH INTERESTS

Security Philosophy

🔴

Red Teaming

Simulating advanced threat actors to stress-test defenses. Understanding full attack chains from initial access to lateral movement and exfiltration.

🦠

Malware Analysis

Static and dynamic analysis of malicious code to understand behavior, persistence mechanisms, and C2 communication patterns.

🤖

AI Security Engineering

Applying ML to automate threat detection, build intelligent SIEM enrichment, and detect zero-day anomalies at scale.

🔒

Zero Trust Architecture

Designing systems where no user or device is implicitly trusted — continuous verification at every layer of the network stack.

☁️

Cloud Security

Securing cloud-native infrastructure against IAM misconfigurations, S3 exposure, container escapes, and cloud-specific vectors.

⚡

Security Automation

Building automated recon pipelines, SIEM alert enrichment workflows, and vulnerability triage systems using Python.

"
An attacker only needs to succeed once. A defender must succeed every single time. That asymmetry is exactly why I choose to think like both.
— Sandhiya D
0
Cyber Projects
0
Tools Mastered
0
Certifications
0
CTF Wins
0
CGPA ×100
07 // CONTACT

Open to Opportunities

Available for cybersecurity internships, entry-level roles, and research collaborations. Let's build something secure.

// SEND A MESSAGE
// OPEN TO ROLES
Penetration Tester
SOC Analyst (L1/L2)
Vulnerability Analyst
AI Security Engineer
Security Researcher