In the last ten years, biometric technology has morphed from something Hollywood villains use to secure their secret dungeons to something almost everyone has in their pocket. But while adoption of biometric security has seen explosive success, misconceptions about biometric authentication are still very common. Let's take a look at how secure biometrics really are, and how you can avoid some costly mistakes! Why Do We Use Biometric Authentication? As many security professionals have demonstrated, password based authentication is fundamentally flawed because of people. People forget, reuse and share their passwords. And that only matters if the chosen password is secure in the first place. So, biometric technology seems like an amazing alternative. Biometric traits are unique, unforgettable and can't easily be shared. Also, everyone shares a similar complexity in their traits, e.g. there are no "weak" fingerprints. On top of all that, using biometrics is super easy. Just.