Laravel Passport provides OAuth2 server support to Laravel
Anti-Spam SMTP Proxy Server implements multiple spam filters
Official PHP SDK for the EmailVeritas URL Checker API
Strong Email & Apache Log Analysis with Active Security Features
Hacking Chrome Saved Passwords
Full-featured C2 framework which silently persists on webserver
PHP 404 pages to trap malicious web requests and report abusers
Encrypting E-Mail Client
A simple native java network library
Encrypting, anonymous, unlimited size message transfer system
An open source, web based, platform independent knowledge base system.
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks
A simple script for distributed computing through PHP:
Detects changes to your Website, finds malware