Privacy & Anonymity
Tor Project
Download the Tor Browser and learn about the Tor network.
I2P Project
The Invisible Internet Project — anonymous networking.
Tails OS
Amnesic live OS focused on privacy and anonymity.
Whonix
Desktop OS designed for advanced security and privacy.
Cryptocurrency
Bitcoin.org
Official Bitcoin website — download wallets, learn how it works.
Monero
Privacy-focused cryptocurrency with untraceable transactions.
Open Source / Free Software
GNU Project
Home of free software — the GNU operating system.
EFF
Electronic Frontier Foundation — digital rights advocacy.
Linux Foundation
Supporting the Linux kernel and open source ecosystem.
Security Resources
Linux Security Best Practices
Comprehensive guide to securing Linux systems.