🔐 Cybersecurity

Ethical hacking, penetration testing, network security, CTFs and defensive security

Cybersecurity

HTTP Cookies | "Cookie Monster" TJCTF 2018

John Hammond Intermediate 7y ago

Cybersecurity

HTML Source Code | "Blank" TJCTF 2018

John Hammond Intermediate 7y ago

Cybersecurity

Infinite JavaScript Scrolling | "Moar Horses" TJCTF 2018

John Hammond Intermediate 7y ago

Cybersecurity

Uncommon SQL Injection | "Ess Kyoo Ell" TJCTF 2018

John Hammond Intermediate 7y ago

Cybersecurity

RSA Cryptography | "Classic" TJCTF 2018

John Hammond Intermediate 7y ago

Cybersecurity

PicoCTF 2017 [33] A Thing Called the Stack

John Hammond Intermediate 7y ago

Cybersecurity

How Did You Get Into Programming?

John Hammond Intermediate 7y ago

Cybersecurity

USB Devices in Wireshark | PicoCTF 2017 [29] Just Keyp Trying

John Hammond Intermediate 7y ago

Cybersecurity

Port Knocking Attack | Ryan's CTF [17] Knock-Knock FINALE

John Hammond Intermediate 7y ago

Cybersecurity

PCAP Manipulation | Ryan's CTF [16] Custom Encoded Data

John Hammond Intermediate 7y ago

Cybersecurity

Sudo ltrace | Ryan's CTF [15] Strings wont help you

John Hammond Intermediate 7y ago

Cybersecurity

Embedded GZIP | Ryan's CTF [14] Mystery File

John Hammond Intermediate 7y ago

Cybersecurity

BASIC Buffer Overflow | Ryan's CTF [13] Everyday I'm Bufferin

John Hammond Intermediate 7y ago

Cybersecurity

Command Injection | Ryan's CTF [12] Input Validation

John Hammond Intermediate 7y ago

Cybersecurity

ALIAS Commands | Ryan's CTF [11] Find Flag Again

John Hammond Intermediate 7y ago

Cybersecurity

Reversing Android APK | Ryan's CTF [10] These are not the droids

John Hammond Intermediate 7y ago

Cybersecurity

Binary ltrace | Ryan's CTF [08] What's the password?

John Hammond Intermediate 7y ago

Cybersecurity

Image Strings | Ryan's CTF [07] "Stenography"

John Hammond Intermediate 7y ago

Cybersecurity

VIM Shell | Ryan's CTF [06] Escape the Jail

John Hammond Intermediate 7y ago

Cybersecurity

HTTP Authentication | Ryan's CTF [04] Encoded Credentials

John Hammond Intermediate 7y ago

Cybersecurity

PATH Environment Variable | Ryan's CTF [09] Find the Flag

John Hammond Intermediate 7y ago

Cybersecurity

Simple MD5 Hash Cracking | Ryan's CTF [03] Crack That Hash

John Hammond Beginner 7y ago

Cybersecurity

Ryan's CTF [02] FTP File Transfer

John Hammond Intermediate 7y ago

Cybersecurity

Ryan's CTF [01] Hidden Web Flag

John Hammond Intermediate 7y ago

Cybersecurity

FULL 2 HOUR Ryan's CTF

John Hammond Intermediate 7y ago

Cybersecurity

Ryan's CTF TIMELAPSE

John Hammond Intermediate 7y ago

Cybersecurity

Git/Linux Hacking | Bandit: OverTheWire (Level 32)

John Hammond Intermediate 7y ago

Cybersecurity

Git/Linux Hacking | Bandit: OverTheWire (Level 31)

John Hammond Intermediate 7y ago

Cybersecurity

Git/Linux Hacking | Bandit: OverTheWire (Level 30)

John Hammond Intermediate 7y ago

Cybersecurity

Git/Linux Hacking | Bandit: OverTheWire (Level 29)

John Hammond Intermediate 7y ago

Cybersecurity

NEW LEVELS [Git Hacking] Bandit: OverTheWire (Levels 26-28)

John Hammond Intermediate 7y ago

Cybersecurity

Learning Cryptography: PicoCTF 2017 [16] Substitution

John Hammond Beginner 7y ago

Cybersecurity

Python Flask WebDev [04] Static Files

John Hammond Intermediate 7y ago

Cybersecurity

Jinja2 Templates | Python Flask WebDev [03]

John Hammond Intermediate 7y ago

Cybersecurity

PicoCTF 2017 [13] What is Web (HTML, CSS, & JS)

John Hammond Beginner 7y ago

Cybersecurity

Python Flask WebDev [02] URL Routing

John Hammond Intermediate 7y ago

Cybersecurity

Python Flask WebDev [01] Installing & Introduction

John Hammond Beginner 7y ago

Cybersecurity

Capture the Flag: PicoCTF 2017 [10] Leaf of the Forest

John Hammond Intermediate 7y ago

Cybersecurity

Getting Started in CTF: PicoCTF 2017 [09] keyz (SSH)

John Hammond Beginner 7y ago

Cybersecurity

Learning CTF: PicoCTF 2017 [08] Loooong (Python Strings)

John Hammond Beginner 7y ago

Cybersecurity

PicoCTF 2017 [07] Getting a Linux VM

John Hammond Intermediate 7y ago

Cybersecurity

How to Play CTF: PicoCTF 2017 [06| Leaf of the Tree

John Hammond Intermediate 7y ago

Cybersecurity

CTF for Beginners: PicoCTF [05] Piazza (IRC & Help)

John Hammond Beginner 7y ago

Cybersecurity

Beginner's Guide to CTF: PicoCTF [04] | Internet Kitties (Netcat)

John Hammond Beginner 7y ago

Cybersecurity

SQL SELECT Tricks & Truncation: Python Web Hacking | Natas: OverTheWire (Level 27)

John Hammond Intermediate 7y ago

Cybersecurity

PHP Object Injection & Serialization: Python Web Hacking | Natas: OverTheWire (Level 26)

John Hammond Intermediate 7y ago

Cybersecurity

Splitting Video into Frames: FFmpeg (Homemade CTF)

John Hammond Intermediate 7y ago

Cybersecurity

PHP strcmp Abuse: Python Web Hacking | Natas: OverTheWire (Level 24)

John Hammond Intermediate 7y ago

📚 Coursera Courses Opens on Coursera · Free to audit

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Network Traffic Analysis with Wireshark

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The Pearson Complete Course for CISM Certification: Unit 3

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Emerging Telecom Technologies: Edge Security Focus

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Exploit Development, Malware, & Defensive Strategies

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Segurança de TI: Defesa Contra as Artes Obscuras do Mundo Digital

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GCP Security and Networking

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Practical Blockchain and Cryptocurrency

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Cyber Security Hashing Training for Beginners

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Driving Customer Equity with AI

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Network Defense Strategies

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Network Security, Troubleshooting, & Certification Prep

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Cybersecurity Testing and Prevention

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IT-Sicherheit: Grundlagen für Sicherheitsarchitektur

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Network Security

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Digital Identity & Security – Introduction to PKI

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Introduction to Events Management

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Ethical Hacking Foundations & Network Security

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Evaluate Your Cloud Next Generation Firewall Needs

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