Today, we’re going to talk about something that affects all of us, thanks to the government’s insistence on Aadhaar. We are talking of biometric authentication, or the use of fingerprints, iris scans, voice recognition and so on, to secure your data. We will be looking at how this works and if there are security risks involved in biometrics. Fingerprints have been used as ID for centuries! People still sign cheques and documents using fingerprints, and many of us have fingerprint scanners installed in office entrances. Plus, we use the fingerprint to my phone.So, what has changed now to make fingerprints so newsworthy?