Signature spoofing is a cyberattack technique where a malicious application manipulates or forges its digital signature to appear as if it is officially signed by a trusted authority. This deception tricks the operating system or security software into treating the fake app as legitimate, allowing it to bypass security checks and gain unauthorized access or permissions. Signature spoofing is particularly dangerous on platforms that rely heavily on digital signatures to verify the authenticity of applications. Attackers may exploit vulnerabilities in the signature verification process or use modified system components to facilitate this attack. Preventing signature spoofing requires robust signature validation and regular security updates.