Penetration Testing

Obsessed with Pentesting

Hello, my name is Rian Friedt, and I am a penetration tester focused on offensive security, Active Directory exploitation, red teaming, web application security, and AI security. I have conquered many of the flagship offensive-security certifications, labs, and challenge paths across platforms like OffSec and Hack The Box, building a strong practical foundation in ethical hacking, wireless security, enterprise attack paths, adversary simulation, and modern AI security. I am focused on applying practical red teaming and penetration testing skills to help organizations strengthen their security posture against evolving threats.

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Rian Friedt

What I’m working on

HTB Certified Wi-Fi Pentesting Expert (HTB CWEP)
HTB Certified Wi-Fi Pentesting Expert (HTB CWEP)
Certification Preparation

I am currently working toward the HTB Certified Wi-Fi Pentesting Expert (HTB CWEP) certification.The path focuses on practical wireless security assessment, including Wi-Fi reconnaissance, authentication and encryption weaknesses, enterprise wireless environments, and professional reporting.Official...

HTB Academy Student Transcript
HTB Academy Student Transcript
Learning Progress

This July 2026 transcript shows my current HTB Academy progress: three certifications (CPTS, CAPE, and COAE), six completed paths, 740 compromised targets, and a Top 1% Academy ranking.It also documents the practical Wi-Fi training...
Company: Hack the Box Academy (Active Directory Penetration Tester)

My Journey: A Personal Hacking Blog
My Journey: A Personal Hacking Blog
Personal Security Blog

This blog is a project of mine to share what I’ve learned along the way. Here, you'll find write-ups of my hacking experiences, insights from penetration testing, and reviews of CAPE certification modules. My...

Projects

Home Server Lab Infrastructure
Home Server Lab Infrastructure
Home Lab Infrastructure

OverviewThis project documents the system integration behind my self-hosted security labs: bare-metal server hardware, virtualization, separate networks for Active Directory, tooling, testing, and management, plus snapshot-based lab workflows. The infrastructure supports controlled Windows, Linux,...
Company: Cyber Security / Penetration Testing

GOAT AD Hacking Lab
GOAT AD Hacking Lab
Active Directory Lab

OverviewGOAT is my self-hosted Active Directory lab built with Ludus on a bare-metal server. The virtualized environment brings together Windows domain targets, attack workstations, and segmented lab services in a repeatable deployment. I use...
Company: Cyber Security / Penetration Testing

OffSec Experienced Penetration Tester (OSEP)
OffSec Experienced Penetration Tester (OSEP)
Certification

The OffSec Experienced Penetration Tester (OSEP) was a focused three-month advanced exploitation project. It strengthened my ability to chain attacks in mature environments, work through evasive tradecraft, perform client-side attacks, tunnel and pivot through...
Company: OffSec Experienced Penetration Tester (OSEP)

Certified Penetration Testing Specialist (HTB CPTS)
Certified Penetration Testing Specialist (HTB CPTS)
Certification

The HTB Certified Penetration Testing Specialist (HTB CPTS) was a two-year practical learning path around end-to-end penetration testing methodology. It covered enumeration, exploitation, web attacks, privilege escalation, pivoting, Active Directory, and professional reporting before...
Company: Hack the Box Academy (Penetration Tester Job Role Path)

Experience

Hack The Box (Grandmaster)
Hack The Box,
Online | May, 2026 - May, 2026

Long-term Hack The Box platform progression culminating in Grandmaster rank on the ADonisRian #DE profile.

Cyber Security / Penetration Testing
Mindbytes GmbH, Cyber Security / Penetration Testing
Germany / Online | January, 2025 - May, 2026

Professional role at Mindbytes GmbH since January 2025, focused on cybersecurity, penetration testing, technical implementation, and practical security projects.

Hack the Box Academy (Active Directory Penetration Tester)
Hack the Box,
Online | January, 2025 - January, 2026

One year of focused Active Directory study and practice for the HTB CAPE certification, including Windows exploitation, AD attack paths, lateral movement, privilege escalation, evasion, and reporting.

OffSec Experienced Penetration Tester (OSEP)
OffSec, OffSec Experienced Penetration Tester (OSEP)
Online | September, 2025 - December, 2025

Three months of advanced penetration testing preparation for OSEP, focused on exploit development, client-side attacks, antivirus and application control bypasses, lateral movement, pivoting, and reporting under exam-style constraints.

Certifications

Badges & Skills

Education

High School
Gymnasium September, 2011 - July, 2019

College
September, 2021 - September, 2022

Cyber Security & Privacy

Self-directed learning
Self-directed / Online September, 2022 - Now

Continuous self-directed learning in offensive cyber security, penetration testing, Active Directory security, exploit development, red teaming, AI security, and hands-on lab work.