Cal.com Transitions to Proprietary Model Amidst AI Security Concerns (twitter.com)

• Cal.com moves core software to a closed-source model.
• Advanced AI-driven vulnerability scanning cited as the primary driver.
• Shift highlights growing tension between transparency and defensive security.

"Cal.com is shifting its core codebase from an open-source model to proprietary, citing escalating security risks driven by advanced AI. The company argues that publicly accessible code allows bad actors to use automated AI tools to identify and exploit vulnerabilities more efficiently. By closing the source, Cal.com aims to better protect its infrastructure against evolving cyber-attack vectors. This decision highlights a broader industry trend where the traditional benefits of open source are being weighed against the dangers of AI-augmented threat intelligence, challenging the paradigm of software development for critical web infrastructure."