The rapid evolution of information technology has made biometric systems accessible for civil use. Biometric authentication is used to access government and commercial offices, industrial automation systems, corporate and personal laptops and mobile phones. However, like many other technologies that have been rapidly evolving lately, biometric authentication systems have proved to have significant drawbacks. The key shortcomings have to do with information security issues, such as accuracy of biometric data recognition by authentication systems, can still be insufficient for many applications. The accuracy is not about simply calculating whether two hash sums are equal, as in the case of password-based authentication.”]
Source: https://securelist.com/biometric-data-processing-and-storage-system-threats/95364/