Tech Skills

Cybersecurity

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

2559
lessons
Level: All Beginner Intermediate Advanced
Any Length Short (<5m) Medium (5-20m) Long (>20m)
Newest Popular Oldest
SANS vLive Evening Classes - LEG523
🔐 Cybersecurity
SANS vLive Evening Classes - LEG523
SANS Institute Intermediate 7y ago
SANS vLive Evening Classes - SEC504
🔐 Cybersecurity
SANS vLive Evening Classes - SEC504
SANS Institute Intermediate 7y ago
Reversing Custom Encoding (Keygen part 2) - Pwn Adventure 3
🔐 Cybersecurity
Reversing Custom Encoding (Keygen part 2) - Pwn Adventure 3
LiveOverflow Intermediate 7y ago
Wireshark Decrypting SSL | "Ssleepy" TJCTF 2018
🔐 Cybersecurity
Wireshark Decrypting SSL | "Ssleepy" TJCTF 2018
John Hammond Intermediate 7y ago
Off-By-One Error | "Titled Troop" TJCTF 2018
🔐 Cybersecurity
Off-By-One Error | "Titled Troop" TJCTF 2018
John Hammond Intermediate 7y ago
Web App Penetration Testing - #14 - Cookie Collection & Reverse Engineering
🔐 Cybersecurity
Web App Penetration Testing - #14 - Cookie Collection & Reverse Engineering
HackerSploit Intermediate 7y ago
How To Install OWASP Juice Shop
🔐 Cybersecurity
How To Install OWASP Juice Shop
HackerSploit Intermediate 7y ago
LSB Steganography | "Lexington State Bank" TJCTF 2018
🔐 Cybersecurity
LSB Steganography | "Lexington State Bank" TJCTF 2018
John Hammond Intermediate 7y ago
Brute-forcing Vignere Cipher | "Vinegar" TJCTF 2018
🔐 Cybersecurity
Brute-forcing Vignere Cipher | "Vinegar" TJCTF 2018
John Hammond Intermediate 7y ago
HTTP Cookies | "Cookie Monster" TJCTF 2018
🔐 Cybersecurity
HTTP Cookies | "Cookie Monster" TJCTF 2018
John Hammond Intermediate 7y ago
HTML Source Code | "Blank" TJCTF 2018
🔐 Cybersecurity
HTML Source Code | "Blank" TJCTF 2018
John Hammond Intermediate 7y ago
String Extension w/ Ltrace | "Validator" TJCTF 2018
🔐 Cybersecurity
String Extension w/ Ltrace | "Validator" TJCTF 2018
John Hammond Intermediate 7y ago
Brute-Force Attack | "Python Reversing" TJCTF 2018
🔐 Cybersecurity
Brute-Force Attack | "Python Reversing" TJCTF 2018
John Hammond Intermediate 7y ago
Joining Discord | "Discord" TJCTF 2018
🔐 Cybersecurity
Joining Discord | "Discord" TJCTF 2018
John Hammond Intermediate 7y ago
Git Repository Depth | "Huuuuuge" TJCTF 2018
🔐 Cybersecurity
Git Repository Depth | "Huuuuuge" TJCTF 2018
John Hammond Intermediate 7y ago
Decimal to Hex | "Nothing But Everything" TJCTF 2018
🔐 Cybersecurity
Decimal to Hex | "Nothing But Everything" TJCTF 2018
John Hammond Intermediate 7y ago
Infinite JavaScript Scrolling | "Moar Horses" TJCTF 2018
🔐 Cybersecurity
Infinite JavaScript Scrolling | "Moar Horses" TJCTF 2018
John Hammond Intermediate 7y ago
Uncommon SQL Injection | "Ess Kyoo Ell" TJCTF 2018
🔐 Cybersecurity
Uncommon SQL Injection | "Ess Kyoo Ell" TJCTF 2018
John Hammond Intermediate 7y ago
Local File Inclusion | "Programmable Hyperlinked Pasta" TJCTF 2018
🔐 Cybersecurity
Local File Inclusion | "Programmable Hyperlinked Pasta" TJCTF 2018
John Hammond Intermediate 7y ago
GIF Strings | "Trippy" TJCTF 2018
🔐 Cybersecurity
GIF Strings | "Trippy" TJCTF 2018
John Hammond Intermediate 7y ago
HTTP Request Options | "Request Me" TJCTF 2018
🔐 Cybersecurity
HTTP Request Options | "Request Me" TJCTF 2018
John Hammond Intermediate 7y ago
Stego with Stegsolve.jar | "Weird Logo" TJCTF 2018
🔐 Cybersecurity
Stego with Stegsolve.jar | "Weird Logo" TJCTF 2018
John Hammond Intermediate 7y ago
RGB Color Threshold | "Interference" TJCTF 2018
🔐 Cybersecurity
RGB Color Threshold | "Interference" TJCTF 2018
John Hammond Intermediate 7y ago
Solving Wordsearches | "Caesar's Complication" TJCTF 2018
🔐 Cybersecurity
Solving Wordsearches | "Caesar's Complication" TJCTF 2018
John Hammond Intermediate 7y ago
RSA Cryptography | "Classic" TJCTF 2018
🔐 Cybersecurity
RSA Cryptography | "Classic" TJCTF 2018
John Hammond Intermediate 7y ago
MD5 Hash Crack | "Central Savings Agency" TJCTF 2018
🔐 Cybersecurity
MD5 Hash Crack | "Central Savings Agency" TJCTF 2018
John Hammond Intermediate 7y ago
PicoCTF 2017 [33] A Thing Called the Stack
🔐 Cybersecurity
PicoCTF 2017 [33] A Thing Called the Stack
John Hammond Intermediate 7y ago
Web App Penetration Testing - #13 - CSRF (Cross Site Request Forgery)
🔐 Cybersecurity
Web App Penetration Testing - #13 - CSRF (Cross Site Request Forgery)
HackerSploit Intermediate 7y ago
Chinese Remainder Theorem | PicoCTF 2017 [32] Weird RSA
🔐 Cybersecurity
Chinese Remainder Theorem | PicoCTF 2017 [32] Weird RSA
John Hammond Intermediate 7y ago
How Did You Get Into Programming?
🔐 Cybersecurity
How Did You Get Into Programming?
John Hammond Intermediate 7y ago
PicoCTF 2017 [31] LeakedHashes
🔐 Cybersecurity
PicoCTF 2017 [31] LeakedHashes
John Hammond Intermediate 7y ago
USB Devices in Wireshark | PicoCTF 2017 [29] Just Keyp Trying
🔐 Cybersecurity
USB Devices in Wireshark | PicoCTF 2017 [29] Just Keyp Trying
John Hammond Intermediate 7y ago
Port Knocking Attack | Ryan's CTF [17] Knock-Knock FINALE
🔐 Cybersecurity
Port Knocking Attack | Ryan's CTF [17] Knock-Knock FINALE
John Hammond Intermediate 7y ago
PCAP Manipulation | Ryan's CTF [16] Custom Encoded Data
🔐 Cybersecurity
PCAP Manipulation | Ryan's CTF [16] Custom Encoded Data
John Hammond Intermediate 7y ago
Sudo ltrace | Ryan's CTF [15] Strings wont help you
🔐 Cybersecurity
Sudo ltrace | Ryan's CTF [15] Strings wont help you
John Hammond Intermediate 7y ago
Embedded GZIP | Ryan's CTF [14] Mystery File
🔐 Cybersecurity
Embedded GZIP | Ryan's CTF [14] Mystery File
John Hammond Intermediate 7y ago
BASIC Buffer Overflow | Ryan's CTF [13] Everyday I'm Bufferin
🔐 Cybersecurity
BASIC Buffer Overflow | Ryan's CTF [13] Everyday I'm Bufferin
John Hammond Intermediate 7y ago
Command Injection | Ryan's CTF [12] Input Validation
🔐 Cybersecurity
Command Injection | Ryan's CTF [12] Input Validation
John Hammond Intermediate 7y ago
ALIAS Commands | Ryan's CTF [11] Find Flag Again
🔐 Cybersecurity
ALIAS Commands | Ryan's CTF [11] Find Flag Again
John Hammond Intermediate 7y ago
Reversing Android APK | Ryan's CTF [10] These are not the droids
🔐 Cybersecurity
Reversing Android APK | Ryan's CTF [10] These are not the droids
John Hammond Intermediate 7y ago
Binary ltrace | Ryan's CTF [08] What's the password?
🔐 Cybersecurity
Binary ltrace | Ryan's CTF [08] What's the password?
John Hammond Intermediate 7y ago
Image Strings | Ryan's CTF [07] "Stenography"
🔐 Cybersecurity
Image Strings | Ryan's CTF [07] "Stenography"
John Hammond Intermediate 7y ago
VIM Shell | Ryan's CTF [06] Escape the Jail
🔐 Cybersecurity
VIM Shell | Ryan's CTF [06] Escape the Jail
John Hammond Intermediate 7y ago
HTTP Authentication | Ryan's CTF [04] Encoded Credentials
🔐 Cybersecurity
HTTP Authentication | Ryan's CTF [04] Encoded Credentials
John Hammond Intermediate 7y ago
PATH Environment Variable | Ryan's CTF [09] Find the Flag
🔐 Cybersecurity
PATH Environment Variable | Ryan's CTF [09] Find the Flag
John Hammond Intermediate 7y ago
Ryan's CTF [02] FTP File Transfer
🔐 Cybersecurity
Ryan's CTF [02] FTP File Transfer
John Hammond Intermediate 7y ago
Ryan's CTF [01] Hidden Web Flag
🔐 Cybersecurity
Ryan's CTF [01] Hidden Web Flag
John Hammond Intermediate 7y ago
FULL 2 HOUR Ryan's CTF
🔐 Cybersecurity
FULL 2 HOUR Ryan's CTF
John Hammond Intermediate 7y ago
📚 Coursera Courses Opens on Coursera · Free to audit
1 / 3 View all →
Cybersecurity and the Internet of Things
📚 Coursera Course ↗
Self-paced
Cybersecurity and the Internet of Things
Opens on Coursera ↗
Security Fundamentals & Network Automation
📚 Coursera Course ↗
Self-paced
Security Fundamentals & Network Automation
Opens on Coursera ↗
Security Architecture and Engineering
📚 Coursera Course ↗
Self-paced
Security Architecture and Engineering
Opens on Coursera ↗
Network Security
📚 Coursera Course ↗
Self-paced
Network Security
Opens on Coursera ↗
Workplace Harassment Prevention Training for Managers
📚 Coursera Course ↗
Self-paced
Workplace Harassment Prevention Training for Managers
Opens on Coursera ↗
Homeland Security & Cybersecurity Connection - It's Not About the Terrorists
📚 Coursera Course ↗
Self-paced
Homeland Security & Cybersecurity Connection - It's Not About the Terrorists
Opens on Coursera ↗