John the Ripper is a penetration testing tool used to find and crack weak passwords.
The following is a quick overview of editions offered by other software in similar categories
Wireshark is a free and open source network troubleshooting tool.
AcuSensor from Maltese company Acunetix is application security and testing software.
Intruder, from Intruder Systems in London, is a cloud-based vulnerability scanner that finds cyber security weaknesses in digital infrastructure, to avoid costly data breaches.
Helped us achieve initial Password Auditor goals and targets. Simple and cheap to deploy, so have saved greatly compared to paid for products.
