Biometric security in the context of cryptocurrencies refers to the use of unique biological characteristics such as fingerprints, facial recognition, or iris scans to authenticate access to wallets and exchange accounts. This provides an additional layer of protection beyond traditional passwords and PINs. Many hardware wallets and mobile crypto apps now support biometric authentication to help prevent unauthorized access to digital assets.
Example
“She enabled fingerprint biometric security on her crypto exchange app so that only her fingerprint could authorize withdrawals.”