🔐 Cybersecurity

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

🔐 Cybersecurity

Off-By-One Error | "Titled Troop" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

LSB Steganography | "Lexington State Bank" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Easy Buffer Overflow | "Math Whiz" TJCTF 2018

John Hammond Beginner 7y ago

🔐 Cybersecurity

Brute-forcing Vignere Cipher | "Vinegar" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 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

String Extension w/ Ltrace | "Validator" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Brute-Force Attack | "Python Reversing" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Joining Discord | "Discord" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Git Repository Depth | "Huuuuuge" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Decimal to Hex | "Nothing But Everything" 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

Local File Inclusion | "Programmable Hyperlinked Pasta" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

GIF Strings | "Trippy" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

HTTP Request Options | "Request Me" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Stego with Stegsolve.jar | "Weird Logo" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

RGB Color Threshold | "Interference" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Solving Wordsearches | "Caesar's Complication" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

RSA Cryptography | "Classic" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

MD5 Hash Crack | "Central Savings Agency" TJCTF 2018

John Hammond Intermediate 7y ago

🔐 Cybersecurity

PicoCTF 2017 [33] A Thing Called the Stack

John Hammond Intermediate 7y ago

🔐 Cybersecurity

Chinese Remainder Theorem | PicoCTF 2017 [32] Weird RSA

John Hammond Intermediate 7y ago

🔐 Cybersecurity

How Did You Get Into Programming?

John Hammond Intermediate 7y ago

🔐 Cybersecurity

PicoCTF 2017 [31] LeakedHashes

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

PicoCTF 2017 [18] computeAES

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

📚 Coursera Courses Opens on Coursera · Free to audit

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Introduction to the Threat Intelligence Lifecycle

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Network Defense Essentials (NDE)

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Mastering the Art of Cross-Functional Collaboration

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Foundations and Reconnaissance Techniques

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Leadership and Change Management for Sustainability Success

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Cloud Top Ten Risks

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Ethical Hacking with Kali Linux: Analyze & Apply

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Risk Management and Incident Response

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Exploit Development, Malware, & Defensive Strategies

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Technical Deep Dive with Incident Response Tools

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Cyber Security Technologies

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Securing the IoT Landscape: From Inception to Architecture

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In the Trenches: Security Operations Center

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Consultative Selling and Buyer Engagement

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IoT Security: Interface and Data Security

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Introdução ao Cloud Next Generation Firewall

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Cybersecurity: What to Do When You Are a Victim

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Security Operations

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