Description: LeakBase is a database of leaked emails and passwords that can be searched to see if your information has been compromised. It is controversial because the data was obtained illegally, though some argue it serves a public good by allowing people to check if their data is secure.
Type: software
Description: Nmap is an open source network discovery and security auditing tool. It is used to discover hosts and services on a network and to detect potential vulnerabilities.
Type: software
Pricing: Free