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Beginner Lessons

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Java Code & Base64 Encoding (PicoCTF 2022 #21 'safe-opener')
Cybersecurity
Java Code & Base64 Encoding (PicoCTF 2022 #21 'safe-opener')
John Hammond Beginner 3y ago
Morse Code for CTFs (PicoCTF 2022 #16 'morse-code')
Cybersecurity
Morse Code for CTFs (PicoCTF 2022 #16 'morse-code')
John Hammond Beginner 3y ago
HIDDEN SOURCE CODE (PicoCTF 2022 #13 'inspect-html')
Cybersecurity
HIDDEN SOURCE CODE (PicoCTF 2022 #13 'inspect-html')
John Hammond Beginner 3y ago
quipqiup & Python for Substitution Ciphers (PicoCTF 2022 #24 'substitution0')
Cybersecurity
quipqiup & Python for Substitution Ciphers (PicoCTF 2022 #24 'substitution0')
John Hammond Beginner 3y ago
Modifying Python Code (PicoCTF 2022 #18 'patchme.py')
Cybersecurity
Modifying Python Code (PicoCTF 2022 #18 'patchme.py')
John Hammond Beginner 3y ago
Linux "grep" Command (PicoCTF 2022 #15 'lookey-here')
Cybersecurity
Linux "grep" Command (PicoCTF 2022 #15 'lookey-here')
John Hammond Beginner 3y ago
RAILFENCE Cipher (PicoCTF 2022 #19 'rail-fence')
Cybersecurity
RAILFENCE Cipher (PicoCTF 2022 #19 'rail-fence')
John Hammond Beginner 3y ago
Filesystem Partition Properties (PicoCTF #23 'sleuthkit-intro')
Cybersecurity
Filesystem Partition Properties (PicoCTF #23 'sleuthkit-intro')
John Hammond Beginner 3y ago
Redacted Text in PDFs (PicoCTF 2022 #20 'redaction-gone-wrong')
Cybersecurity
Redacted Text in PDFs (PicoCTF 2022 #20 'redaction-gone-wrong')
John Hammond Beginner 3y ago
Passwords in Client-Side JavaScript (PicoCTF 2022 #14 'local-authority')
Cybersecurity
Passwords in Client-Side JavaScript (PicoCTF 2022 #14 'local-authority')
John Hammond Beginner 3y ago
Intro to Debugging w/ GDB (PicoCTF 2022 #11 'gdb-test-drive')
Cybersecurity
Intro to Debugging w/ GDB (PicoCTF 2022 #11 'gdb-test-drive')
John Hammond Beginner 3y ago
Intro to Wireshark (PicoCTF 2022 #17 'packets-primer')
Cybersecurity
Intro to Wireshark (PicoCTF 2022 #17 'packets-primer')
John Hammond Beginner 3y ago
Search Across Web Elements (PicoCTF #22 'search-source')
Cybersecurity
Search Across Web Elements (PicoCTF #22 'search-source')
John Hammond Beginner 3y ago
HTML, CSS & JavaScript (PicoCTF 2022 #12 'includes')
Cybersecurity
HTML, CSS & JavaScript (PicoCTF 2022 #12 'includes')
John Hammond Beginner 3y ago
NahamCon CTF 2022 is THIS THURSDAY
Cybersecurity
NahamCon CTF 2022 is THIS THURSDAY
John Hammond Beginner 3y ago
Obscure File Types & Compression (PicoCTF 2022 #10 'file-types')
Cybersecurity
Obscure File Types & Compression (PicoCTF 2022 #10 'file-types')
John Hammond Beginner 3y ago
Punctuation on the Command-Line! (PicoCTF 2022 #09 file-run2)
Cybersecurity
Punctuation on the Command-Line! (PicoCTF 2022 #09 file-run2)
John Hammond Beginner 3y ago
Hacking WEB APPS: XSS, RCE & Prototype Pollution / 7ASecurity
Cybersecurity
Hacking WEB APPS: XSS, RCE & Prototype Pollution / 7ASecurity
John Hammond Beginner 3y ago
WRITE BASH SCRIPTS for CTF Solutions (PicoCTF 08 'file-run1')
Cybersecurity
WRITE BASH SCRIPTS for CTF Solutions (PicoCTF 08 'file-run1')
John Hammond Beginner 3y ago
Zero-Day Vulnerabilities in CosmWasm Smart Contracts
Cybersecurity
Zero-Day Vulnerabilities in CosmWasm Smart Contracts
John Hammond Beginner 3y ago
SVG Internals (PicoCTF 2022 #07 enhance)
Cybersecurity
SVG Internals (PicoCTF 2022 #07 enhance)
John Hammond Beginner 3y ago
PrintNightmare CVE (PicoCTF 2022 #06)
Cybersecurity
PrintNightmare CVE (PicoCTF 2022 #06)
John Hammond Beginner 3y ago
GETTING INTO CYBERSECURITY #shorts
Cybersecurity
GETTING INTO CYBERSECURITY #shorts
John Hammond Beginner 4y ago
ROT13 Caesar Cipher (PicoCTF 2022 #05 credstuff)
Cybersecurity
ROT13 Caesar Cipher (PicoCTF 2022 #05 credstuff)
John Hammond Beginner 4y ago
DANGEROUS C Functions gets & strcpy (PicoCTF 2022 #04 buffer-overflow0)
Cybersecurity
DANGEROUS C Functions gets & strcpy (PicoCTF 2022 #04 buffer-overflow0)
John Hammond Beginner 4y ago
Modular Inverses in Python 3 (PicoCTF 2022 #03 basic-mod2)
Cybersecurity
Modular Inverses in Python 3 (PicoCTF 2022 #03 basic-mod2)
John Hammond Beginner 4y ago
Ransomware Attacks #shorts
Cybersecurity
Ransomware Attacks #shorts
John Hammond Beginner 4y ago
Python Scripting Modular Arithmetic - PicoCTF 2022 #02 basic-mod1
Cybersecurity
Python Scripting Modular Arithmetic - PicoCTF 2022 #02 basic-mod1
John Hammond Beginner 4y ago
PicoCTF 2022 #01 - WELCOME & Basic File Exploit
Cybersecurity
PicoCTF 2022 #01 - WELCOME & Basic File Exploit
John Hammond Beginner 4y ago
Hacking MOBILE APPS: iOS & Android w/ 7ASecurity
Cybersecurity
Hacking MOBILE APPS: iOS & Android w/ 7ASecurity
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 009: Fail2ban Configuration
Cybersecurity
SANS Holiday Hack Challenge 009: Fail2ban Configuration
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 008: Finish Objective7
Cybersecurity
SANS Holiday Hack Challenge 008: Finish Objective7
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 007: Hash Extension Part1
Cybersecurity
SANS Holiday Hack Challenge 007: Hash Extension Part1
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 006: Shellcode Primer
Cybersecurity
SANS Holiday Hack Challenge 006: Shellcode Primer
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 005: JavaScript Hacking
Cybersecurity
SANS Holiday Hack Challenge 005: JavaScript Hacking
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 004: IPv6 and Rubber Duckies
Cybersecurity
SANS Holiday Hack Challenge 004: IPv6 and Rubber Duckies
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 003: Logic
Cybersecurity
SANS Holiday Hack Challenge 003: Logic
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge 002: Exiftool and OSINT
Cybersecurity
SANS Holiday Hack Challenge 002: Exiftool and OSINT
John Hammond Beginner 4y ago
SANS Holiday Hack Challenge: Intro and Grepping for Gold
Cybersecurity
SANS Holiday Hack Challenge: Intro and Grepping for Gold
John Hammond Beginner 4y ago
Career Conversations with seclilc - Offensive Cybersecurity!
Cybersecurity
Career Conversations with seclilc - Offensive Cybersecurity!
John Hammond Beginner 4y ago
Hard Truths & Unexpected Realities: Cybersecurity Lamentations
Cybersecurity
Hard Truths & Unexpected Realities: Cybersecurity Lamentations
John Hammond Beginner 4y ago
Bruteforcing MFA & Fail2ban Manipulation - TryHackMe! (Biteme)
Cybersecurity
Bruteforcing MFA & Fail2ban Manipulation - TryHackMe! (Biteme)
John Hammond Beginner 4y ago
"Prevention First": An Approach to Cybersecurity w/ Minerva Labs!
Cybersecurity
"Prevention First": An Approach to Cybersecurity w/ Minerva Labs!
John Hammond Beginner 4y ago
Introducing PurplePanda: AUTOMATED Privilege Escalation IN THE CLOUD
Cybersecurity
Introducing PurplePanda: AUTOMATED Privilege Escalation IN THE CLOUD
John Hammond Beginner 4y ago
Hacking ELECTRON: JavaScript Desktop Applications w/ 7aSecurity
Cybersecurity
Hacking ELECTRON: JavaScript Desktop Applications w/ 7aSecurity
John Hammond Beginner 4y ago
Uncovering NETWIRE Malware - Discovery & Deobfuscation
Cybersecurity
Uncovering NETWIRE Malware - Discovery & Deobfuscation
John Hammond Beginner 4y ago
SQLi, SSTI & Docker Escapes / Mounted Folders - HackTheBox University CTF "GoodGame"
Cybersecurity
SQLi, SSTI & Docker Escapes / Mounted Folders - HackTheBox University CTF "GoodGame"
John Hammond Beginner 4y ago
Windows 11 Assigned Access - Kiosk BUILD (Hard Mode)
AI News & Updates
Windows 11 Assigned Access - Kiosk BUILD (Hard Mode)
John Hammond Beginner 4y ago
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Master Agile Scrum - Basics to Advanced with Jira Projects
📚 Coursera Course ↗
Self-paced
Master Agile Scrum - Basics to Advanced with Jira Projects
Opens on Coursera ↗
Redacting Sensitive Data with Cloud Data Loss Prevention
📚 Coursera Course ↗
Self-paced
Redacting Sensitive Data with Cloud Data Loss Prevention
Opens on Coursera ↗
Master Apple Device Deployment with Microsoft Intune (2025)
📚 Coursera Course ↗
Self-paced
Master Apple Device Deployment with Microsoft Intune (2025)
Opens on Coursera ↗
Advanced Topics in ASP.NET Core Development
📚 Coursera Course ↗
Self-paced
Advanced Topics in ASP.NET Core Development
Opens on Coursera ↗
Explore Data with Gemini in BigQuery
📚 Coursera Course ↗
Self-paced
Explore Data with Gemini in BigQuery
Opens on Coursera ↗
Creating Engaging Content for TikTok
📚 Coursera Course ↗
Self-paced
Creating Engaging Content for TikTok
Opens on Coursera ↗