Ionic has introduced SSL Pinning for Capacitor, an enhancement aimed at bolstering mobile app security by hard-coding a server's SSL certificate or public key into applications, thereby thwarting man-in-the-middle (MITM) attacks. This method is crucial for safeguarding data accessed, used, and stored by mobile apps, as highlighted by OWASP, which cites insecure communication as a top risk. SSL Pinning prevents unauthorized interception of data between apps and servers, offering a critical layer of protection that works alongside other security measures like encryption and secure coding practices. The Capacitor SSL Pinning plugin simplifies the implementation of this security feature by utilizing certificates stored on-device and supported by the Capacitor HTTP plugin, allowing developers to secure user data effectively.