Free Cybersecurity eBooks for Beginners
If you are new to cybersecurity, this collection can help you build a strong foundation in networking, Linux, ethical hacking, OSINT, web security, and general security best practices.
Topics you may explore:
✔️ Cybersecurity fundamentals
✔️ Networking & Linux basics
✔️ Ethical hacking concepts
✔️ Web & application security
✔️ OSINT & threat intelligence
✔️ Security awareness & best practices
Link 👇
Link courses download: https://drive.google.com/drive/u/0/folders/1DqvFPxC3ROZgRndVYsfpX7C7Nqx1CnmL?fbclid=IwY2xjawSOuztleHRuA2FlbQIxMABicmlkETAwdlhrRURCSlc5cHVpbVdYc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHs0ThEKJW2ieNpSY6EJMwuygDlqJQatcyDOf8H39jBuDQXxszBgZ7InQMTmU_aem_52Re7Qw_S8ddN4ZwxjFYkw
If you are new to cybersecurity, this collection can help you build a strong foundation in networking, Linux, ethical hacking, OSINT, web security, and general security best practices.
Topics you may explore:
✔️ Cybersecurity fundamentals
✔️ Networking & Linux basics
✔️ Ethical hacking concepts
✔️ Web & application security
✔️ OSINT & threat intelligence
✔️ Security awareness & best practices
Link 👇
Link courses download: https://drive.google.com/drive/u/0/folders/1DqvFPxC3ROZgRndVYsfpX7C7Nqx1CnmL?fbclid=IwY2xjawSOuztleHRuA2FlbQIxMABicmlkETAwdlhrRURCSlc5cHVpbVdYc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHs0ThEKJW2ieNpSY6EJMwuygDlqJQatcyDOf8H39jBuDQXxszBgZ7InQMTmU_aem_52Re7Qw_S8ddN4ZwxjFYkw
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GhostShell Framework — a prototype mobile security testing environment designed for controlled research and analysis.
• Session monitoring across multiple devices
• OTG-based communication testing
• Modular architecture for research scenarios
• Data flow observation in controlled environments
Link: https://www.instagram.com/hexsec_community/reel/DZMijxRsW9l/
• Session monitoring across multiple devices
• OTG-based communication testing
• Modular architecture for research scenarios
• Data flow observation in controlled environments
Link: https://www.instagram.com/hexsec_community/reel/DZMijxRsW9l/
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🛠 Windows CMD Defensive Cheat Sheet for Pentesters
Link: https://www.instagram.com/hexsec_community/p/DZMkKm5DFxM/
Download pdf : https://www.linkedin.com/feed/update/urn:li:activity:7468574038286581760/
Link: https://www.instagram.com/hexsec_community/p/DZMkKm5DFxM/
Download pdf : https://www.linkedin.com/feed/update/urn:li:activity:7468574038286581760/
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Master Termux and unlock real Linux power on your phone.
Learn essential commands, automation, scripting, OSINT, and cybersecurity basics — all from your Android device.
Your first step to hacking starts here.
01 The Termux Foundation
02 Interacting with the Android UI
03 Accessing Device Hardware
04 Communication & Connectivity
05 Process, Job, & Session Control
06 Advanced File & Text Manipulation
07 Scripting & Automation
08 Storage & Archive Management
09 Advanced Networking & Secure Connections
10 System Internals & Diagnostics
Link Github Coomands: https://github.com/hexsecteam/Termux-Command-Handbook
Link Slide : https://www.facebook.com/photo?fbid=122127045423235406&set=pcb.122127046323235406
Learn essential commands, automation, scripting, OSINT, and cybersecurity basics — all from your Android device.
Your first step to hacking starts here.
01 The Termux Foundation
02 Interacting with the Android UI
03 Accessing Device Hardware
04 Communication & Connectivity
05 Process, Job, & Session Control
06 Advanced File & Text Manipulation
07 Scripting & Automation
08 Storage & Archive Management
09 Advanced Networking & Secure Connections
10 System Internals & Diagnostics
Link Github Coomands: https://github.com/hexsecteam/Termux-Command-Handbook
Link Slide : https://www.facebook.com/photo?fbid=122127045423235406&set=pcb.122127046323235406
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ULTIMATE cURL ONELINERS CHEAT SHEET FOR BUG HUNTERS
A professional, compact reference of ready-to-run cURL one-liners for Recon, Authentication, Injection, WAF Bypass, SSRF and HTTP Request Smuggling — built for bug bounty hunters, red teamers and penetration testers.
Link Github Coomands: https://github.com/hexsecteam/ultimate-curl-cheatsheet
Link Slide : https://www.facebook.com/photo/?fbid=122126973303235406&set=pcb.122126973957235406
A professional, compact reference of ready-to-run cURL one-liners for Recon, Authentication, Injection, WAF Bypass, SSRF and HTTP Request Smuggling — built for bug bounty hunters, red teamers and penetration testers.
Link Github Coomands: https://github.com/hexsecteam/ultimate-curl-cheatsheet
Link Slide : https://www.facebook.com/photo/?fbid=122126973303235406&set=pcb.122126973957235406
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SQLMap Cheat Sheet by HexSec 🔎💡
A compact, field-tested guide for automating SQL injection testing with sqlmap. Perfect for web app assessments, CTFs, and bug bounty workflows — only with proper authorization.
Link Slide : https://www.instagram.com/hexsec_community/p/DZM6eJIDEyJ/
Link pdf: https://www.linkedin.com/posts/valvisdefense_sqlmap-cheat-sheet-by-hexsec-ugcPost-7468623857260589056-0Rnd/?utm_source=share&utm_medium=member_desktop&rcm=ACoAADPCGyABYoL7OGQ5LI0zSQtWM33wJhBuxRg
A compact, field-tested guide for automating SQL injection testing with sqlmap. Perfect for web app assessments, CTFs, and bug bounty workflows — only with proper authorization.
Link Slide : https://www.instagram.com/hexsec_community/p/DZM6eJIDEyJ/
Link pdf: https://www.linkedin.com/posts/valvisdefense_sqlmap-cheat-sheet-by-hexsec-ugcPost-7468623857260589056-0Rnd/?utm_source=share&utm_medium=member_desktop&rcm=ACoAADPCGyABYoL7OGQ5LI0zSQtWM33wJhBuxRg
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🚀 Turn Your Phone into a Pocket Hacking Lab
Turn your Android phone into a powerful penetration testing device by installing Termux and Kali NetHunter, giving you access to essential cybersecurity tools directly from your mobile.
Step 1 🌐 Search F-Droid → Download & install APK → Enable Unknown Sources
Step 2 📦 Open F-Droid → Search Termux → Install Termux
Step 3 🔎 Search NetHunter Rootless → All commands on official site
Step 4 📋 Copy & paste commands from site
Step 5 ⚡️ Install Kali Linux
Video Tutorial : https://www.instagram.com/p/DZNDRL1MhEI/
Turn your Android phone into a powerful penetration testing device by installing Termux and Kali NetHunter, giving you access to essential cybersecurity tools directly from your mobile.
Step 1 🌐 Search F-Droid → Download & install APK → Enable Unknown Sources
Step 2 📦 Open F-Droid → Search Termux → Install Termux
Step 3 🔎 Search NetHunter Rootless → All commands on official site
Step 4 📋 Copy & paste commands from site
Step 5 ⚡️ Install Kali Linux
Video Tutorial : https://www.instagram.com/p/DZNDRL1MhEI/
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10_GitHub_Repositories_for_Learning_Ethical_Hacking_2026_compressed.pdf
836.2 KB
🔐 10 GitHub Repositories to Learn Ethical Hacking in 2026
From HackTricks and OWASP Top 10 to GTFOBins, CTFs, payloads, and Termux mastery — these GitHub repos cover real-world pentesting skills, not theory.
From HackTricks and OWASP Top 10 to GTFOBins, CTFs, payloads, and Termux mastery — these GitHub repos cover real-world pentesting skills, not theory.
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🔥 Good evening everyone 🖤💚
Thank you all for being part of the HexSec Community and for the support.
📄 All latest HexSec PDFs are now uploaded on LinkedIn.
Each post includes a preview image so you can quickly check the content.
👉 https://www.linkedin.com/in/valvisdefense
📥 To download a PDF, open the post, tap the bottom-right corner to expand it, then select Download PDF.
📲 Follow the official HexSec pages:
📸 https://www.instagram.com/hexsec_community
📸 https://www.instagram.com/hexsec_team
📘 https://www.facebook.com/hexsecteam
💻 https://github.com/hexsecteam
🛠 Need a custom tool, developer support, or interested in one of my tools?
Contact me directly on Telegram:
💬 https://t.me/Hexsecteam
🙏 If you repost or share content from HexSec, please tag the page and give proper credit.
It helps support the community and protects the work behind it.
Thank you all for the support ⚡️
HexSec Community 🖤💚
Thank you all for being part of the HexSec Community and for the support.
📄 All latest HexSec PDFs are now uploaded on LinkedIn.
Each post includes a preview image so you can quickly check the content.
👉 https://www.linkedin.com/in/valvisdefense
📥 To download a PDF, open the post, tap the bottom-right corner to expand it, then select Download PDF.
📲 Follow the official HexSec pages:
📸 https://www.instagram.com/hexsec_community
📸 https://www.instagram.com/hexsec_team
📘 https://www.facebook.com/hexsecteam
💻 https://github.com/hexsecteam
🛠 Need a custom tool, developer support, or interested in one of my tools?
Contact me directly on Telegram:
💬 https://t.me/Hexsecteam
🙏 If you repost or share content from HexSec, please tag the page and give proper credit.
It helps support the community and protects the work behind it.
Thank you all for the support ⚡️
HexSec Community 🖤💚
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Top_10_Web_Vulnerability_Scanners_Every_Ethical_Hacker_Must_Know.pdf
858.6 KB
Top 10 Web Vulnerability Scanners Every Ethical Hacker Must Know 🔎🛠
OWASP ZAP • Nikto • w3af • Wapiti • Nuclei • WPScan • SQLMap • Nmap • OpenVAS • XSStrike
OWASP ZAP • Nikto • w3af • Wapiti • Nuclei • WPScan • SQLMap • Nmap • OpenVAS • XSStrike
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1.png
2.6 MB
🛠 Networking & Security Q&A Guide (226+ Questions)
OSI, TCP/IP, Routing, OSPF, BGP, EIGRP, VLAN, STP, VPN, IPsec, Firewall, ASA & more 🔐
Perfect for CCNA/CCNP prep and interview revision 🚀
OSI, TCP/IP, Routing, OSPF, BGP, EIGRP, VLAN, STP, VPN, IPsec, Firewall, ASA & more 🔐
Perfect for CCNA/CCNP prep and interview revision 🚀
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👋 Hey everyone! I hope you're all doing well.
As you know, all of the PDFs are uploaded to my LinkedIn profile. You can view them there anytime, and if you'd like to save them as a PDF, simply open the document, expand it, and click the Download button at the top.
🔗 https://www.linkedin.com/in/valvisdefense/
Thank you all for the amazing support. I truly appreciate every single one of you! ❤️
As you know, all of the PDFs are uploaded to my LinkedIn profile. You can view them there anytime, and if you'd like to save them as a PDF, simply open the document, expand it, and click the Download button at the top.
🔗 https://www.linkedin.com/in/valvisdefense/
Thank you all for the amazing support. I truly appreciate every single one of you! ❤️
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