Fort Firewall github.com ↗

A Malwarebytes front end for managing the built-in Windows Firewall.

Amazon's managed web application firewall service.

An alpha web application firewall reverse proxy aimed at small web and self-hosted sites.

An application firewall and network monitor by Safing.

A minimal open-source Windows Filtering Platform firewall.

Cloudflare's managed web application firewall.

A Linux application firewall inspired by Little Snitch.

A collection of curated IP blocklists for firewalls and routing.

A commercial password manager with a built-in SSH agent that can be unlocked with Touch ID.

A hardware security key supporting FIDO2, PIV and OpenPGP.

A browser extension that blocks JavaScript and other active content by default.

A macOS app that stores SSH keys in the Secure Enclave and acts as an SSH agent.

An end-to-end encrypted messaging app.

An anonymity network that routes traffic through volunteer relays.

An unprivileged Linux sandboxing tool built on namespaces.

Free service for planting tripwire tokens that alert you when they are accessed.

A CAPTCHA alternative from Cloudflare that checks whether a visitor is human.

Cloudflare's managed web application firewall.

Moxie Marlinspike's 2011 proposal for client-chosen notary-based TLS certificate verification.

A podcast covering true stories from the dark side of the internet, including hacking and cyber heists.