Most popular security repositories and open source projects

Cybersecurity (security) includes controlling physical access to hardware as well as protection from attacks that come via network access, data injection, and code injection.

x64dbg

An open-source x64/x32 debugger for windows.

1562   36354   36354  

Awesome-Hacking

A collection of various awesome lists for hackers, pentesters and secu...

5906   35621   35621  

the-book-of-secret-knowledge

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, o...

3148   31120   31120  

caddy

Fast, cross-platform HTTP/2 web server with automatic HTTPS

2197   26485   26485  

cs-video-courses

List of Computer Science courses with video lectures.

3009   21439   21439  

security-guide-for-developers

Security Guide for Developers (实用性开发人员安全须知)

1469   19550   19550  

mitmproxy

An interactive TLS-capable intercepting HTTP proxy for penetration tes...

2321   17989   17989  

algo

Set up a personal VPN in the cloud

1462   17225   17225  

osquery

SQL powered operating system instrumentation, monitoring, and analytic...

1955   16533   16533  

macOS-Security-and-Privacy-Guide

Guide to securing and improving privacy on macOS

1115   15590   15590  

hosts

Extending and consolidating hosts files from several well-curated sour...

1310   14686   14686  

API-Security-Checklist

Checklist of the most important security countermeasures when designin...

1527   14330   14330  

setup-ipsec-vpn

Scripts to build your own IPsec VPN server, with IPsec/L2TP and Cisco...

3518   12807   12807  

PayloadsAllTheThings

A list of useful payloads and bypass for Web Application Security and...

3988   12701   12701  

CheatSheetSeries

The OWASP Cheat Sheet Series was created to provide a concise collecti...

1692   12106   12106  

radare2

UNIX-like reverse engineering framework and command-line toolset

2117   11975   11975  

How-To-Secure-A-Linux-Server

An evolving how-to guide for securing a Linux server.

698   11105   11105  

hacker101

Hacker101

1507   11063   11063  

nginx-admins-handbook

How to improve NGINX performance, security, and other important things...

821   11043   11043  

hydra

OpenID Certified™ OpenID Connect and OAuth Provider written in Go - cl...

971   10377   10377  

nginxconfig.io

⚙️ NGiИX config generator on steroids ?

623   10340   10340  

tink

Tink is a multi-language, cross-platform, open source library that pro...

748   9095   9095  

wifiphisher

The Rogue Access Point Framework

1988   8653   8653  

labs

This is a collection of tutorials for learning how to use Docker with...

4101   8566   8566  

keeweb

Free cross-platform password manager compatible with KeePass

728   8517   8517  

the-practical-linux-hardening-guide

This guide details creating a secure Linux production system. OpenSCAP...

429   8135   8135  

docker-slim

DockerSlim (docker-slim): Don't change anything in your Docker contain...

275   8113   8113  

Mailpile

A free & open modern, fast email client with user-friendly encryption...

969   8079   8079  

openzeppelin-contracts

OpenZeppelin Contracts is a library for secure smart contract developm...

3140   7858   7858  

teleport

Privileged access management for elastic infrastructure.

570   7856   7856  

routersploit

Exploitation Framework for Embedded Devices

1567   7700   7700  

vuls

Agent-less vulnerability scanner for Linux, FreeBSD, Container Image,...

784   7237   7237  

zaproxy

The OWASP ZAP core project

1300   7008   7008  

helmet

Help secure Express apps with various HTTP headers

265   6757   6757  

cutter

Free and Open Source Reverse Engineering Platform powered by radare2

540   6628   6628  

test-your-sysadmin-skills

A collection of Linux Sysadmin Test Questions and Answers. Test your k...

665   6481   6481  

brakeman

A static analysis security vulnerability scanner for Ruby on Rails app...

590   5677   5677  

graylog2-server

Free and open source log management

803   5203   5203  

system-bus-radio

Transmits AM radio on computers without radio transmitting hardware.

366   4851   4851  

gitleaks

Audit git repos for secrets ?

322   4805   4805  

fail2ban

Daemon to ban hosts that cause multiple authentication errors

832   4771   4771  

KeychainAccess

Simple Swift wrapper for Keychain that works on iOS, watchOS, tvOS and...

482   4753   4753  

awesome-security

A collection of awesome software, libraries, documents, books, resourc...

738   4093   4093  

security-101-for-saas-startups

security tips for startups

228   4031   4031  

wpscan

WPScan is a free, for non-commercial use, black box WordPress vulnerab...

730   3868   3868