OffSec SEC-100 & OSCC-Sec Certification Review
AppleTree's detailed review of OffSec's SEC-100 CyberCore course and OSCC-Sec certification exam.
Under the Appl3Tree
OffSec PEN-210 & OSWP Certification Review
AppleTree's detailed review of OffSec's PEN-210 course and the OSWP certification exam.
Security Blue Team BTL1 Course & Certification Review
AppleTree's detailed review of Security Blue Team's BTL1 course and certification exam.
BrunnerCTF 2025 — Write-up
Walkthrough of the BrunnerCTF 2025 challenges I solved as part of team APISec Avengers
OffSec TH-200 & OSTH Certification Review
AppleTree's detailed review of OffSec's Threat Hunting course (TH-200) and OSTH certification exam.
WHY2025 CTF Write-up
Full write-up of completed challenges in WHY2025 CTF.
Practical Web Application Security and Testing (PWST) Review
AppleTree's in-depth review of Michael Taggart’s Practical Web Application Security and Testing (PWST) course, including full curriculum highlights, lab experience, and methodology insights.
ShaktiCTF 2025 Write-up
Full write-up of completed challenges in ShaktiCTF 2025 by AppleTree, covering Misc, OSINT, Rev, and Web categories.
DownUnderCTF 2025 Write-up
Write-up and walkthroughs for DownUnderCTF 2025 - beginner and medium challenges across OSINT, Reversing, Misc, and Forensics.
L3akCTF 2025 Write-up
Write-up for L3akCTF 2025 by AppleTree, part of team APISec Avengers. Focused heavily on OSINT challenges with GeoGuessr-style tasks.