A "Pin-Code" is a numerical code used to secure access to various systems, such as bank accounts, mobile devices, and online services. It typically consists of four to six digits and is designed to verify a user's identity. Users must enter their Pin-Code to complete transactions or unlock devices, ensuring that only authorized individuals can access sensitive information. Pin-Codes are commonly used in conjunction with other security measures, such as passwords or biometric authentication. They provide an additional layer of protection against unauthorized access, making it more difficult for potential intruders to gain entry to personal accounts or devices.