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📚 Freely available programming books

Python 375,952 65,290 Updated Nov 2, 2025

A collection of real-world threat model examples across various technologies, providing practical insights into identifying and mitigating security risks.

468 73 Updated Jun 12, 2025

A collection of PDF/books about the modern web application security and bug bounty.

1,623 434 Updated Dec 14, 2023

Sample Vulnerable and Secure Code Snippets for Various Vulnerabilities

21 10 Updated Jun 18, 2024

A list of Free Software network services and web applications which can be hosted on your own servers

256,130 11,830 Updated Oct 30, 2025

Unofficial Microsoft Teams for Linux client

JavaScript 3,860 295 Updated Nov 2, 2025

Just a repo of random Python scripts to get pentesters started with the Python language on engagements.

Python 217 60 Updated Feb 29, 2020

Some of the questions which i was asked when i was giving interviews for Application/Product Security roles. I am sure this is not an exhaustive list but i felt these questions were important to be…

677 108 Updated Aug 7, 2020

A simple and modern portfolio template which is lightweight, mobile responsive and looks modern.

CSS 51 127 Updated Feb 14, 2024

Client-Server chat room service realized as a socket programming and networking exercise

C 4 1 Updated Jun 17, 2021

Client-Server and Inter-client chatroom in C

C 2 3 Updated Oct 25, 2019

TeaVPN2 - An open source VPN Software (currently supported platform is only Linux).

C 52 11 Updated Jul 25, 2023

The world's smallest VPN server and client.

C 82 30 Updated Dec 3, 2022

Simple billing and market management project in c++. It has admin panel where admin can manage stock of items and customer can buy the items. Bill is auto generated. There is also sound system. Giv…

C++ 29 29 Updated Nov 15, 2022

It is a basic C Language Project

C 16 6 Updated Jul 24, 2019

Cryptanalysis of Enigma M4 in Go Lang with pure statistical means utilizing Index of Coincidence and Trigram analysis.

Go 8 Updated Apr 2, 2020

High Performance TCP/UDP/HTTP Communication Component

C 6,040 1,789 Updated Oct 14, 2025

A Very Small FTP Server focused on simplicity and portability.

C 1 Updated Jul 24, 2020

Software developer resume in Latex

TeX 6,227 1,730 Updated Aug 14, 2024

Enigma cipher machine emulator (CLI + library) written in Go

Go 55 16 Updated Feb 11, 2017

A complete computer science study plan to become a software engineer.

332,146 81,078 Updated Aug 28, 2025

Practical Cryptography Assignments

Go 1 Updated Jul 12, 2020