In the right hands, OpenBullet checks if a website’s login forms are resilient to brute-force attempts. In the wrong hands, it automates the process of taking millions of username/password pairs leaked from one service (e.g., LinkedIn, Adobe) and testing them against another (e.g., PayPal, Netflix, banking portals).
Disclaimer: This article is for informational purposes only. The following content discusses hacking tools for educational defense. The author does not endorse, promote, or provide links to malicious software. Unauthorized use of credential stuffing tools is illegal under laws such as the CFAA (US) and the Computer Misuse Act (UK). Introduction: What is OpenBullet? OpenBullet is a legitimate, open-source web testing suite originally designed for security professionals to perform stress-testing and fuzzing on web applications. However, like many powerful tools, it has been weaponized by threat actors for credential stuffing attacks . openbullet 1.4.4 anomaly download