guest@portfolio:~$./whoami

_

Cybersecurity Enthusiast & Developer

Exploiting vulnerabilities & building secure systems.

What I'm working on

  • ▸CTF challenges & writeups on TryHackMe
  • ▸Web application, AD & physical penetration testing
  • ▸Network security & Cisco certifications
  • ▸Building offensive security tools in Python
scroll down

cat profile.json

About

guest@portfolio:~
$whoami
NameElias Mähler
TitleCybersecurity Enthusiast & Developer
LocationSweden
Email[email protected]
Passionate about cybersecurity, CTFs, and building cool things.
Currently exploring offensive security and web development.
I love solving puzzles, breaking things (ethically), and automating everything.
$skills --list
LanguagesPython, PowerShell, Bash, SQL
ToolsGit, Linux, Active Directory, VS Code, Wireshark
$ls ~/certifications
[✓]CCNA: Enterprise Networking, Security, and Automation— Cisco (2026) ↗[✓]CCNA: Switching, Routing, and Wireless Essentials— Cisco (2026) ↗[✓]CCNA: Introduction to Networks— Cisco (2026) ↗[✓]Cyber Security 101— TryHackMe (2026) ↗[✓]Pre Security— TryHackMe (2025) ↗
$cat experience.log
Teaching AssistantUniversity of Borås · 2025 — Present
$cat education.log
BSc Computer ScienceUniversity of Borås · 2023 — Present
$

ls ~/projects

Projects

~/cybersecteach

CyberSecTeach

An interactive educational platform that teaches cybersecurity concepts using real-world analogies and animations — no technical background required.

ReactFramer MotionViteCSS
SourceLive
~/e-commerce-bi-dashboard

E-Commerce BI Dashboard

Power BI analysis of 89K orders from Brazilian e-commerce platform Olist (2016–2018). Built a star-schema data model with DAX measures across 5 dashboard pages covering revenue KPIs, product categories, geographic distribution, seasonal trends, and payment behaviour.

Power BIDAXSQLData Modelling
Live
~/attack-&-defend-lab

Attack & Defend Lab

A Python simulation framework modelling the full attacker–defender lifecycle. Includes attacker personas (fast/stealthy scanner), a real-time detection engine, threat hunting analytics with reputation scoring and baseline analysis, and incident narrative generation.

PythonTCP SocketsMatplotlibMultithreading
Source

ls ~/writeups

CTF Writeups

TryHackMeK2Chained Machines / Active Directory / Web
Hard
TryHackMeAirplaneLFI / gdbserver RCE / Privilege Escalation
Medium
TryHackMeSequenceWeb / XSS / CSRF / Docker
Medium
TryHackMeInterceptorWeb / SSRF
Medium
TryHackMeMustacchioXXE / Privilege Escalation
Easy
TryHackMeTryHeartMeWeb / JWT
Easy
TryHackMeBrooklyn Nine NinePrivilege Escalation
Easy

ps aux | grep work

Process List

Experience

TIMEUSER (COMPANY)COMMAND (ROLE)
2025 — PresentUniversity of Borås
Teaching Assistant
Mentored students in python programming and calculus, graded assignments, and assisted in lab sessions.

Education

TIMEUSER (SCHOOL)COMMAND (DEGREE)
2023 — PresentUniversity of BoråsBSc Computer Science

netcat -lvnp 1337

Establish Connection

connection_request.sh
root@portfolio:~# ./connect --target=elias
Establishing connection...
Target acquired: [email protected]

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