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Designing and validating resilient systems through methodical penetration testing and risk-based security practices.
Transforming ideas into secure, elegant solutions through ethical testing and risk-driven design
5+
Years Experience
100+
Projects Completed
50+
Happy Clients
About
Who wouldn’t want to understand how systems can be broken into, so they can be secured even better?
About Me
Certified Ethical Hacker & Penetration Tester
Aspiring Ethical Hacker, Penetration Tester and Digital forensics. My focus is on understanding how systems can be breached—and building stronger defenses to prevent real-world cyber threats. I specialize in learning and practicing core security skills such as vulnerability assessment, OSINT investigations, phishing analysis, and basic exploitation techniques within safe, controlled environments. With every project, I aim to improve my technical expertise, sharpen my problem-solving skills, and contribute to creating a more secure digital world.
Dedicated to uncovering vulnerabilities, improving system security, and growing as an ethical hacker and penetration tester
Name
Leon Akwasi Sylvester,Owusu
Phone
+233 594 264517
Email
Leonakwasiowususylvester@gmail.com
Occupation
Certified Ethical Hacker and Penetration Tester
Nationality
Ghanaian
Leon Akwasi Sylvester,Owusu
Securing Systems, Creating A Better World
Ethical Hacking
Skilled at identifying vulnerabilities and assessing system weaknesses ethically.
85%Penetration Testing
Experience performing controlled attacks on networks, systems, and web apps.
80%Digital Forensics
Skilled in evidence collection, metadata analysis, and investigating cyber incidents.
70%OSINT Investigations
Proficient at gathering intelligence from online sources for threat and scam analysis.
75%Resume
Aspiring Ethical Hacker and Cybersecurity Analyst focused on penetration testing, OSINT, and digital forensics.
Work Experience
Hands-on experience in cybersecurity tasks such as vulnerability assessment, OSINT investigations, phishing analysis, and network security.
Freelance Cybersecurity Researcher
2024 - PresentEthical Hacking & Security Research
Conduct ethical hacking labs, analyze vulnerabilities, and build security tools to strengthen cybersecurity skills.
- Performed penetration testing in controlled lab environments using Kali Linux.
- Built OSINT-based tools for information gathering and phone/email investigation.
- Analyzed phishing attacks and created defensive awareness materials.
- Practiced network scanning, enumeration, and exploitation using Metasploit, Nmap, Burp Suite, etc.
Student Cybersecurity Projects
2023 - PresentCybersecurity Practitioner (Student)
Worked on various personal and academic cybersecurity projects to gain real-world skills.
- Developed small Python tools for reconnaissance and credential analysis.
- Performed digital forensics on sample images and files to extract metadata (EXIF).
- Simulated attacks in a virtual lab to understand threat behavior.
- Studied OSINT techniques for tracking scammers and analyzing fake accounts.
Leadership Experience (GCTU)
2023 - PresentSRC Rep, Audit Deputy Chair, TEIN Deputy Treasurer
Leadership positions enhancing communication, teamwork, accountability, and project management—valuable skills in cybersecurity operations.
Course Perfect
CEO & Lead Cybersecurity Instructor
Leading Course Perfect in providing top-notch cybersecurity training, including practical labs, hands-on exercises, and real-world simulations to equip students with in-demand cybersecurity skills.
- Design and deliver comprehensive ethical hacking and cybersecurity courses for students and professionals.
- Conduct hands-on labs on penetration testing, network security, OSINT investigations, and defensive strategies.
- Create practical exercises simulating phishing attacks, malware analysis, and incident response scenarios.
- Mentor students in using tools like Kali Linux, Nmap, Metasploit, Burp Suite, and other cybersecurity software.
- Oversee curriculum development, ensuring alignment with industry standards and emerging cybersecurity trends.
My Education
Academic training in cybersecurity, programming, networks, and digital systems.
Ghana Communication Technology University
2023 - PresentBSc Cybersecurity
Studying network security, ethical hacking, computer forensics, Linux administration, logic & critical thinking, and programming.
Self-Learning & Professional Development
2023 - PresentCybersecurity Skills Development
Actively learning ethical hacking tools, Linux, Python programming, and OSINT analysis through labs, simulations, and online resources.
Certifications & Courses
OngoingCybersecurity Training
Working toward future certifications such as CEH, eJPT, Google Cybersecurity, or TryHackMe learning paths.
Portfolio
A showcase of my cybersecurity, ethical hacking and digital forensics projects — including penetration testing, OSINT investigations, malware analysis and automation tools.
- All Work
- Web Security
- Penetration Testing
- OSINT
- Cyber Tools
Web Security
OWASP Web Application Pentest
Performed end-to-end penetration testing on demo and real world web apps — SQLi, XSS, CSRF, IDOR, RCE, Auth Bypass.
Penetration Testing
Vulnerability Scanning & Exploitation Lab
Created a simulated hacking environment for network, OS, and application exploitation using Kali Linux & Metasploit.
OSINT
Digital Footprint Investigation
Performed deep OSINT profiling on emails, phone numbers and accounts using open source tools for threat intelligence.
Cyber Tools
Python Security Automation Scripts
Developed tools for metadata extraction, URL scanning, log analysis, and automated reconnaissance.
Malware Research
Static & Dynamic Malware Analysis
Investigated malware samples in a secure sandbox — extracting IoCs, analyzing behavior and understanding attack vectors.
Testimonials
What clients and collaborators say about my cybersecurity work and expertise.
Exceptional Threat Analysis
Leon has an outstanding ability to identify and neutralize cybersecurity threats efficiently. His knowledge of penetration testing and OSINT techniques is remarkable.
He communicates complex security issues clearly and provides actionable solutions that protect our systems and data.
Saul Goodman
Cloud Security
Highly Skilled Ethical Hacker
Working with Leon was a game-changer for our security. His ethical hacking skills helped us find vulnerabilities that others overlooked.
He approaches cybersecurity challenges creatively, and his professionalism ensures projects are delivered with precision.
Sara Wilsson
Cybersecurity Analyst
Reliable Security Consultant
Leon provides expert advice on cybersecurity policies and defense strategies. His insights into phishing prevention and network hardening are invaluable.
Collaborating with him ensures that our organization stays ahead of evolving cyber threats with minimal risk.
Matt Brandon
Certified Penetration Tester
Professional Cybersecurity Guidance
Leon’s advice and hands-on support improved our digital security immensely. His methods are precise, practical, and effective.
He is trusted to handle sensitive tasks, ensuring our data remains safe and secure.
Jena Karlis
CEO
Services
Professional cybersecurity services to protect your systems, data, and networks from evolving digital threats.
Comprehensive Cybersecurity Solutions
From penetration testing to OSINT investigations, I provide tailored solutions to secure your digital assets and strengthen your network defenses.
See all servicesPenetration Testing
Identify vulnerabilities in your systems and networks before attackers do, with detailed reports and actionable recommendations.
OSINT Investigations
Gather open-source intelligence on threats, social engineering attacks, and digital footprints to improve organizational security.
Network Security Audits
Analyze your network configurations and defenses, ensuring robust security and compliance with industry best practices.
Phishing & Social Engineering Tests
Simulate attacks to test your team’s awareness and readiness, reducing human-factor vulnerabilities in your organization.
Frequently Asked Questions
Common questions about my cybersecurity services and how I help protect digital assets.
What types of cybersecurity services do you provide?
I offer services including penetration testing, network security audits, phishing simulations, and OSINT investigations to help secure your digital assets and infrastructure.
How do you perform penetration testing?
I simulate real-world cyberattacks to identify vulnerabilities in systems, networks, and applications. After testing, I provide detailed reports with actionable recommendations to improve security.
What is OSINT, and how can it help my organization?
OSINT (Open-Source Intelligence) involves collecting publicly available data to assess risks, monitor threats, and improve security awareness. It helps organizations detect potential threats before they escalate.
How can I prepare my team for phishing attacks?
I conduct simulated phishing campaigns and social engineering tests to educate your staff on identifying suspicious emails and links, strengthening the human element of your cybersecurity defenses.
Do you offer ongoing cybersecurity support?
Yes, I provide continuous monitoring, security audits, and guidance to ensure your systems remain secure against evolving threats and compliance requirements.
How do I get started with your cybersecurity services?
You can contact me directly through the portfolio website or schedule a consultation. I will assess your needs and recommend tailored solutions for your organization.