Ghidra is a software reverse engineering (SRE) framework
Dynamic instrumentation toolkit for developers
Block Mass Surveillance
Cross-platform multi-protocol VPN software
Cross-Platform Passwords & Secrets Vault
A TLS MITM proxy for Non-HTTP traffic, with support for TLS upgrades
Repo for Blokada apps
Minimal and free Kubernetes distribution with Terraform
Complete and free implementation of the OpenPGP standard
Set of Ansible scripts that simplifies the setup of a personal VPN
IPBan is a trusted, free security software to block hackers
Bug-fix-only libev port of shadowsocks
The OWASP ZAP core project
A transparent, highly scalable and cryptographically verifiable data
OSINT Framework
Agentless vulnerability scanner for Linux/FreeBSD
A free and open source interactive HTTPS proxy
Real-time global intelligence dashboard
Security tools that can be used to audit SIP based VoIP systems
Open source cloud native security observability platform
The Mullvad VPN client app for desktop and mobile
Open-source tool to enforce privacy & security best-practices
AdGuard browser extension
The Ray Tracing in One Weekend series of books
Testing TLS/SSL encryption anywhere on any port