A 2022 LexisNexis study highlights that each dollar lost to fraud costs US businesses an average of $3.75, a figure likely to increase as fraudsters become more sophisticated. To combat online fraud, accurately identifying website visitors is crucial, and browser fingerprinting solutions like Fingerprint Pro offer a more reliable alternative to traditional methods such as cookies and IP addresses. By analyzing various browser attributes, Fingerprint Pro creates unique identifiers to help prevent fraud, such as account takeovers and credential stuffing. The text provides a detailed guide on integrating Fingerprint Pro into a Vue.js application to enhance security by generating and validating visitor IDs through a backend server with PostgreSQL, ensuring that each account is linked to a single device. The application adheres to a one-device-per-user policy and employs Fingerprint Pro's server-side validation to authenticate login attempts. This approach enhances security measures and prevents unauthorized access by verifying the integrity and authenticity of visitor identifiers, thereby mitigating potential fraud risks.