Browser signals, such as user agent strings, JavaScript settings, and screen resolution, are crucial for identifying users online and preventing fraud by distinguishing one browser from another. However, users may intentionally alter these signals through spoofing or tampering to enhance privacy, bypass restrictions, or test website compatibility, which complicates online security by aiding bad actors in evading detection. Browser spoofing involves changing identifiable information to misrepresent a browser's identity, while tampering encompasses broader changes to browser settings and configurations. Detecting these manipulations can improve risk assessments, with tools like Fingerprint offering solutions to simplify the detection process. By identifying inconsistencies or unusual patterns in browser data, companies can enhance their fraud detection systems and improve online security.